Question

Find the values of sine cosine and tangent for angle A

Answer 1

Answer:

• Option A

Step-by-step explanation:

Find the length of AB:

• AB = $\sqrt{7^2+4^2} =\sqrt{65}$

Now as we know:

sine = opposite / hypotenuse

• sin A = 4/$\sqrt{65}$ = 4$\sqrt{65}$/65

cosine = adjacent / hypotenuse

• cos A = 7/$\sqrt{65}$ = 7$\sqrt{65}$/65

tangent = opposite / adjacent

• tan A = 4 / 7

Correct choice is A