what is tan sin/cos

Abigail married Jonathan three years ago, but his family believed she did so for their money. The in-law's dislike and a looming homewrecker pushed Abigail to a breaking point, with Jonathan's indifference being the last straw. Seeing Abigail beyond disheartened and ready to leave, it was to Jonathan's surprise to learn the things Abigail endured these three years. Even more to Jonathan's surprise, Abigail is revealed to be... As the truth unveiled and misunderstandings lifted, will the two rekindle their love in the end?

Seven years ago, a night of passion entwined Evelyn with GT CEO Xavier. Now a single mother, Evelyn seeks a father for her son William and to escape a twisted teacher, Richard. When she rescues Xavier's mother from an attack, she enters a contract marriage with him—unaware he is the man from that night and William's biological father. As school bullying, Richard's revenge, and dark family secrets emerge, Xavier's true identity is on the verge of being exposed.

Aria and Aurora are Luna wives to Alpha twins. When rogues attack, Aria begs her husband to save her and unborn child, but he chooses his stepsister instead. By dawn, Aria loses her baby, Aurora loses her wolf, and both lose faith in their mates. As sisters sever bonds and leave, the twins realize too late what they sacrificed. Will Aria and Aurora ever forgive the men who broke them?

After an unexpected encounter, Adelyn slept with Trent. Adelyn intended to forget everything, but Trent re-entered her life as her fiancé's uncle. To make matters even more complicated, Adelyn discovered she was pregnant with Trent's child. This set off a tangled web of emotions, leading them both into a passionate and reckless love affair.

For three years, Emily Davis faithfully carried out her duties as Benjamin Parker's wife, believing her gentleness could eventually thaw his heart. Sadly, she came to realize that her efforts were in vain. Disheartened, she made the difficult decision to end their marriage. Emily, determined to focus on her career and avoid past mistakes, remains steadfast. Benjamin, however, refuses to give up. Hence, he embarks on a journey to win back his wife's heart.

Kaelen, a legendary pilot reborn as an 8-year-old boy, boards a plane that is about to crash. As deadly accidents strike one after another, no one believes a child can save them. But with hundreds of lives on the line, can Kaelen land the plane before it’s too late?

When Dora Quinn, the Goddess of Fortune, descends to the mortal realm, she crosses paths with the ambitious but struggling Adrian West.Using her divine powers, Dora helps Adrian navigate a career crisis and repeatedly thwarts the schemes of the ruthless Leo West.Along the way, Dora braved the Underworld to save Adrian's grandfather and used her own body heat to cure his mysterious chill.As they face challenge after challenge together, romance blossoms. In the end, love triumphs, proving that fortune truly favors the bold.

The female CEO, Nancy Scott, had a one-night stand with a young guy, Tyler Forbes, planning to send him away with a settlement, only to end up in a flash marriage with him. Little did she know, he was actually a mysterious powerful tycoon in disguise.

One day, Nancy Snyder saw Landon's golden boy, Simon Lowery, throw $100,000 at Jill Wiley, an innocent college girl. He said, "Take off one piece, and I'll give you $100,000." Nancy thought it was a great bargain! If Jill didn't wanna do it, Nancy would do it. So she traded her two shoes, two pairs of socks, two shoelaces, and an apron for $700,000. After that,Nancy stayed by Jill's side to pick up the handbag, jewelry, and apartment that Jill had ditched. Nancy also took the job and the chance to study abroad that Jill didn't want. In this way, Nancy eventually became a rich, successful businesswoman!

One day, Nancy Snyder saw Landon's golden boy, Simon Lowery, throw $100,000 at Jill Wiley, an innocent college girl. He said, "Take off one piece, and I'll give you $100,000." Nancy thought it was a great bargain! If Jill didn't wanna do it, Nancy would do it. So she traded her two shoes, two pairs of socks, two shoelaces, and an apron for $700,000. After that,Nancy stayed by Jill's side to pick up the handbag, jewelry, and apartment that Jill had ditched. Nancy also took the job and the chance to study abroad that Jill didn't want. In this way, Nancy eventually became a rich, successful businesswoman!

Once the world's deadliest assassin, Hope retires for her mother. Back home, she finds her mom, kidnapped for 15 years, is being bullied. Hope unleashes her power to destroy the abusers and reclaim all that was stolen from her mom, vowing to be her protector.

Once the world's deadliest assassin, Hope retires for her mother. Back home, she finds her mom, kidnapped for 15 years, is being bullied. Hope unleashes her power to destroy the abusers and reclaim all that was stolen from her mom, vowing to be her protector.

In a world where humans awaken their talents to become beast tamers and form contracts with magical beasts, Crane, stripped of his powers by his family, awakens a mysterious system. He excels in the Beast Contract Ceremony and Hunter Tower Trials, and uses rare resources to grow both himself and his beasts. Driven by the search for his parents, he embarks on a journey through dangerous realms,facing fierce competition and trials to become a true beast master.

Forced into marriage, top student Nancy Wren escapes and meets billionaire Jason Black by fate. She later discovers she is pregnant. Seeking responsibility, she is instead misjudged due to a false infertility report and given a cheque, which her family takes away. Pregnant and alone, she struggles to survive until she saves an elder of the Black family, drawing her back into his world.Misunderstandings follow—yet in the end, truth wins, love returns, and she finally builds a free, happy life with him and their children.

Forced into marriage, top student Nancy Wren escapes and meets billionaire Jason Black by fate. She later discovers she is pregnant. Seeking responsibility, she is instead misjudged due to a false infertility report and given a cheque, which her family takes away. Pregnant and alone, she struggles to survive until she saves an elder of the Black family, drawing her back into his world.Misunderstandings follow—yet in the end, truth wins, love returns, and she finally builds a free, happy life with him and their children.

Rosy Lewis, a gold digger with a heart full of ambition, had meticulously plotted her way into Southville's most prestigious family, the Hobsons, ready to ascend to a life of luxury and power. But on the very day of her grand wedding, disaster struck. After hearing rumors of her fiancé's infidelity, she stormed in with a group of her closest allies, ready to confront the supposed mistress. In a shocking twist, Rosy mistakenly accused her fiancé's mother of being the other woman, setting off a scandal that shattered her carefully crafted dream of becoming the distinguished bride of a powerful family.

"If she can't reclaim love within a week… what will become of her?” In a world obsessed with appearances, a fantasy romance thriller unfolds—one that shakes love to its core. After seven years together, she is abandoned by her boyfriend for one cruel reason: she isn’t pretty enough. Consumed by betrayal and rage, she reaches the depths of despair—only to find herself standing in a plastic surgery clinic. That’s when Lucifer appears before her, whispering a tempting offer. “Would you like to be reborn with a new face?” But there’s a catch. If she fails to win back love within seven days, she will be condemned to live forever with a grotesque face. Bound by a devil’s contract, Jung-yun is granted breathtaking beauty. Yet what begins as a simple desire for revenge soon forces her to confront the deepest parts of herself. Between what is seen and unseen, love begins to bloom. What is love? Who am I, really? A chain of endless questions leads into a complex and delicate psychological thriller—where love and revenge collide, both inside and out.

One month before her wedding, Rowan Hale discovers her fiancé Victor’s cruel plan—he intends to use her as a surrogate for another woman’s child. Devastated, Rowan disappears without a trace.Three years later, Rowan returns as the renowned surgeon “Dr. V” and has found true love with Atticus Blackthorne, the richest man in the country.But on the day of her wedding, Victor appears. What will he beg for? And what will Rowan choose?