Question

Use trig ratios to find the measure of the angle in this triangle. A .cos^-1(4/5) B. tan(4/5) tan^-1(4/5) C. sin(4/5) D. cos(4/5) E. sin^-1(4/5)

Answer 1

Answer:

The answer is A

Step-by-step explanation:

Step 1: Use Cosine to find ∅

Cos∅=$\frac{4}{5}$

∅=Cos$^{-1}$($\frac{4}{5}$)

Therefore the answer is A