Question

2sin²(+)-1

Answer 1

Ответ:

sin (x)

Объяснение:

Answer 2

It seems like there might be a mistake in the expression you've provided. The expression "2sin²(+)-1" appears to be incomplete or contains a typographical error. Could you please clarify or correct the expression you're asking about? If you're looking for assistance with a mathematical expression involving trigonometric functions like sine, please provide the complete and accurate expression so I can help you better.