If cos0=-3/5 in quadrant II, what is sin0

if and is in the second quadrant.

Step-by-step explanation:

By the Pythagorean Trigonometric Identity:

for all real values.

In this question:

.

Therefore:

.

Note, that depending on , the sign can either be positive or negative. The sine of any angles above the axis should be positive. That region includes the first quadrant, the positive -axis, and the second quadrant.

According to this question, the here is in the second quadrant of the cartesian plane, which is indeed above the -axis. As a result, the sine of this

It was already found (using the Pythagorean Trigonometric Identity) that:

.

Take the positive square root of both sides to find the value of :

.

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!

b. x + 1

step-by-step explanation:

i'am smart