She suddenly changed her personality, surprising everyone.

He hit a jackpot at the pachinko.

His behavior was increasing in weirdness.

His art is odd, but that's why I like it.

He made a strange face and made everyone laugh.

In order to find the inverse function, you need to solve the original function's equation for x and y.

Understanding real variable functions is important for learning the basics of advanced mathematics.

He is good at using irregular verbs.

Please find the derivative of this function.

Trigonometric functions are one of the basic concepts in mathematics.