The score of trigonometric function exam is unpredictable every year. But basically fill in the blanks and answer the questions,

For example, there are very few topics about trigonometric functions in the mathematics liberal arts of our college entrance examination this year 12.

Compared with the one-module, two-module and three-module papers, there are too few questions about trigonometric functions.

But now the trend of mathematics college entrance examination is to interweave trigonometric functions with other knowledge to give questions.

I still want to memorize the trigonometric formula. Just in case,

I hope I can help you. Take advice,