Question

If sin is 3/4 and tan is -3/4, then cos is ?

Answer 1

Answer:

$cos=1$

Step-by-step explanation:

Use the acronym SOH-CAH-TOA

sin = $\frac{3}{4}$

So opposite is 3 and hypotenuse is 4.

tan = $\frac{-3}{4}$

So opposite is -3 and adjacent is 4.

cos = adjacent/hypotenuse

cos = $\frac{4}{4}=1$