8. (07.01 mc)
if the sin 0° = 0, then which statement is true? (6 points)
o
cos 90º = 1, because the cosine and sine are complements
cos 180°
1, because the cosine and sine are supplements
cos 90º = 0, because the cosine and sine are complements
o
cos 180º = 0, because the cosine and sine are supplements

, because the cosine and sine are complements

Step-by-step explanation:

Sine and cosine are trigonometric complementary functions. If we are talking about a right triangle we will have the following:

(1)

(2)

Let's prove it:

(3)

(4)

(5)

(6)

cos 90° = 0, because the angles are complements

Step-by-step explanation:

cos 90° = 0

sin 0° = 0

sin and cos are complementary

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation: