Question

Cos(2) 15(0) - sin(2) 15

Answer 1

Ответ:

√3\2

Пошаговое объяснение:

cos² 15°- sin² 15=cos(2* 15°)=cos30°=√3\2

Answer 2

Ответ:

-15sin(2)

Пошаговое объяснение:

0-15sin(2)

Answer 3

It seems like you're trying to write a mathematical expression involving trigonometric functions. However, the formatting of the expression you provided is unclear.

If you meant to write it as "cos(2) * 15 * 0 - sin(2) * 15," then we can evaluate it as follows:

cos(2) is the cosine of the angle 2 (measured in radians), which is approximately equal to -0.416. sin(2) is the sine of the angle 2 (measured in radians), which is approximately equal to 0.909. Multiplying cos(2) by 15 and 0, we get 0 since any number multiplied by 0 is 0. Multiplying sin(2) by 15, we get approximately 13.635.

Therefore, the expression simplifies to 0 - 13.635, which equals approximately -13.635.