Answer:


This is the formula for the <u>pythagorean </u><u>theorem </u>i.e, one leg of a triangle squared plus another leg of a triangle squared equals the hypotenuse squared.
Answer:
-(2×-4y)
Step-by-step explanation:
calculate it
Answer:
is the same as
by co-function identities
Step-by-step explanation:
Remember that complementary angles add up to 90°. The angle that i s complementary to 63° is 27°.
Also recall the co-function identities:
- sin (90° – x) = cos x
- cos (90° – x) = sin x
This means that
.