Question

-27 sin765

Answer 1

(sin(x+2kπ)=sinx)

sin  765° = sin (720°+45°)=sin 45° = (√2)/2

-27√2sin 765° =-27√2.√2/2=-27.2/2=-27.1=-27

Answer 2

It appears that you want to find the value of the expression "-27 sin765". However, it seems like there might be an error in the input. The sine function typically takes an angle as its argument, expressed in degrees or radians.

If you meant to calculate the sine of an angle, please provide the angle in degrees or radians. For example, if you meant to find the sine of 30 degrees, the expression would be written as "-27 sin(30)".

If you meant something else or if there was a typo, please clarify the expression you want to evaluate, and I'd be happy to help you with the calculation.