what is tan sin/cos

After years of cultivation, Zoey was struck by lightning—only to wake up inside a novel as the pitiful girl whose fate had been stolen. Faced with the Stuart family's cruelty, she fought back with her fists—and accidentally ended up with a virtuous fiancé. Using her spiritual powers, she uncovered the mastermind behind the Fox family's misfortunes and suddenly found herself pampered beyond belief.

On what was meant to be the happiest day of her life, Anya Aldridge's wedding turns into a nightmare. Her father is imprisoned, her fiancé calls off the wedding, and in her despair, she is betrayed by her cousin and ends up spending a night with an escort. By a twist of fate, the man she accidentally ends up with is the powerful CEO, Grayson Haley. Five years later, Anya and her child, Rory, unexpectedly reunite with Grayson, who continues concealing his CEO status and pretending to be an escort. Despite his hidden identity, Grayson showers them with love and affection as they navigate their new life together.

Riley Miller heads to the bank to withdraw some cash, only to have the ATM swallow her card—thanks to an unhelpful customer service clerk. Her frustration deepens when she discovers that $10,000 has mysteriously vanished from her account. Just when she feels helpless, the malfunctioning ATM suddenly goes haywire… and starts spewing out money like there's no tomorrow.

Tim Judd, a top tycoon, disguises himself as a delivery man. One day, while delivering an order, he accidentally walks in on Cora Bale while she's taking a shower and ends up being chased out by security. His son, Jack, thinks Tim is just goofing off and doesn't take any job seriously. When Tim makes a delivery the next day and meets Cora again, he helps her resolve a company crisis with ease, changing her impression of him. Although Tim may be slightly older, he proves to be quite reliable. Impressed, Cora asks him to be her fake boyfriend.

World-class ace pilot Theo Zimmer finds himself back at eight years old, aboard the very flight he took with his father that year. Fully aware that everyone on board is doomed to die in a catastrophic crash once the plane takes off, he faces a desperate mission. At 9,000 feet, flames engulf the wings, the cabin tears open to the freezing wind, and every passenger teeters on the brink of death. In this moment, he must rely on his eight-year-old body to stop the crash, save his father—who died protecting him—and rescue hundreds of passengers. Passengers doubt him,the captain lies unconscious, signals are lost, and danger is everywhere. With fuel leaking, treacherous terrain below, and an emergency landing looming, the survival odds are just 1%.Can this eight-year-old pilot save everyone?

Arthur Lane, the Lane family's fallen prodigy,awakened an F-Rank "Sleepy Worm", the most useless beast soul imaginable. Overnight, the "SSS-Rank Genius" became a joke. His S-Rank fiancée, Nancy Cole, twisted the knife, publicly dumping him to seal his disgrace.But the joke's on them.That "worm"? The Primordial Dragon in disguise. And Arthur's Bronze-level laziness? A carefully crafted mask, forged by ten years of brutal training.Now, as the world laughs... the dragon wakes.

In the previous life, Evelyn Lester found that her roommate, Felice James, had planted malware on her phone and stolen her money. In the end, Evelyn was pushed off the roof by Felice and died. After Evelyn came back to the first day of college, Felice suggested traveling abroad again. This time, Evelyn put her smartphone in the dorm and took an ancient phone instead. She couldn't wait to see what Felice would do when she couldn't pretend to be wealthy again.

Samuel Fisk, the world's richest man, willingly leaves his fortune to live a simple life and raise his son, Aaron Fisk. But when Aaron marries the proud Peggy York, he faces a pushy fiancée, a controlling mother-in-law, and a troublesome sister-in-law. Aaron hopes his father won't attend the wedding, yet Samuel insists on being there, determined to support him no matter what.

No matter what life throws your way, keep moving forward.

One day, while feeding fish, Yvette accidentally fell into the pond and discovered a life-shattering truth: She had no blood relation with her parents or her five brothers. She was nothing but the Stewart family's false heiress! Faced with the certainty of losing everything, Yvette decided to stop struggling altogether and just enjoy life before being kicked out. But when Harriet, the true heiress, finally returned, her brothers shielded Yvette behind them, pleading, "Harriet, let her stay.She's... not exactly sharp. It's too dangerous for her out there aloneOne day, while feeding fish, Yvette accidentally fell into the pond and discovered a life-shattering truth: She had no blood relation with her parents or her five brothers. She was nothing but the Stewart family's false heiress! Faced with the certainty of losing everything,Yvette decided to stop struggling altogether and just enjoy life before being kicked out. But when Harriet, the true heiress, finally returned, her brothers shielded Yvette behind them, pleading,"Harriet,let her stay.She's... not exactly sharp. It's too dangerous for her out there alone."

Lynn, a girl born in a remote mountainous region, worked diligently to gain admission to a prestigious university. However, her father, who favored sons over daughters, refused to support her aspirations and even went so far as to tear up her acceptance letter. In contrast, her mother sold her blood to help fund Lynn's education. Five years later, Lynn achieved remarkable success and envisioned building factories in her hometown to uplift all the villagers. However, the villagers mistakenly perceived her as a foot massage worker. In reality, she was the CEO of Honor Group.

Since childhood, Melanie Llyod has lived under the shadow of loss, her mother gone and her stepmother intent on securing a vast inheritance. Raised in a world of fragile comfort, Melanie grows weak and dependent. But after a sudden accident, Ashton Llyod reappears in her life, urging her to find strength and independence. The emotions they've suppressed for years begin to surface. Though they share no blood, they've lived as siblings for 18 years. But in the 19th year, everything changes… Kate Llyod, determined to steal Melanie's fiance, relentlessly tries to expose the secret connection between Melanie and Ashton. Amidst the growing misunderstandings, Melanie decides to bury her feelings and honor her engagement. Ashton, too, chooses to distance himself, focusing on his responsibilities. But when a twist of fate leads to a murder attempt, Ashton is left gravely injured and hospitalized. At last, both must confront their true feelings for each other. Yet, the challenges ahead are far from over…

Efa was the daughter of a murderer. Her mom loved the wrong man, ruined a family, and ended up in prison. After she died, Efa met her father and three half-brothers, but they wanted nothing to do with her. Then Efa became a national sweetheart overnight. As the world fell for her, her childhood friend Declan took her hand.Let's build our own home.She turned to leave—but the men who once pushed her away suddenly wouldn't let her go.

Six years ago, Fred Steel, once the president of the World Neurology Association, walked away from invitations from the world’s top medical circles to live incognito in River City. His only mission: to ensure the awakening of one man—a man whose salvation he regarded as the crowning achievement of his life. That man is Felix Quaid, CEO of Peak Group, who has remained unconscious in a top-tier medical ward for six years. Now, the very man who reshaped the world six years ago is about to wake, and his return will once again send tremors across the globe.

Janet Driscoll, once the cherished darling of the family, was devastated to discover that she was not her parents' biological daughter. After their real daughter, Jaime, was welcomed home, her once-loving parents and brother began to trust Jaime blindly, hanging on her every word.When Janet was falsely accused of pushing her grandma down the stairs, the Driscoll family, without hesitation, sent her to a harsh reform school. There, she endured three years of inhumane torment that left her with permanent, life-altering disabilities.Three years later, when the family finally brought her home, they were shocked to find that the bright, cheerful Janet they once knew had vanished. In her place stood a cold, distant young woman who had shut them all out.

Melissa Zeller and Travis Shaw have a ten-year age difference. Three years into their marriage, just as Melissa is ready to have babies, she discovers that Travis truly loves Sophie Lane and has only ever treated her as a replacement.Heartbroken, she decides to divorce him. On the day she receives the divorce certificate, Travis learns that Sophie is being forced into a marriage and rushes to save her, only to discover that Melissa is also at the wedding...

Efa was the daughter of a murderer. Her mom loved the wrong man, ruined a family, and ended up in prison. After she died, Efa met her father and three half-brothers, but they wanted nothing to do with her. Then Efa became a national sweetheart overnight. As the world fell for her, her childhood friend Declan took her hand.Let's build our own home.She turned to leave—but the men who once pushed her away suddenly wouldn't let her go.

Shirley Stone, the clandestine girlfriend of wealthy heir Felix Goodwin, faces heartbreak when Felix abruptly proposes to Sara Lane. Feeling used and unloved, Shirley decides to move on. However, Felix, realizing his mistake and the depth of his feelings for Shirley, sets out to win her back. As they navigate their tumultuous relationship, Shirley is torn between the past and a possible future with Felix...