Question

Round your final answer to 4 decimal places, if necessary. sin to the power of 2 (55 percent) + cos of the power of two (55 percent) =

Answer 1

Answer: 1

Reason

The pythagorean trig identity is

`\sin^2(\text{x})+\cos^2(\text{x}) = 1`

This is something you should memorize.

Plug in x = 55 to get

`\sin^2(55)+\cos^2(55) = 1`