176k views
3 votes
Select the correct answer from the drop-down menu.

tant = . Therefore, tan(90-A) =
(All angle measurements are in degrees.

User Kazagistar
by
8.2k points

2 Answers

5 votes

Answer:

D.

1/tan A

Explanation:

User Jay Rajput
by
8.2k points
4 votes

Answer:

D.

Explanation:

The choices to this question are

a.) 1/tan(90-A)

b.) 1/sin A

c.) 1/cos(90-A)

d.) 1/tan A

We know that


tanx=(sinx)/(cosx), which is a trigonometric identity.

If
tan(90-A) then,


tan(90-A)=(sin(90-A))/(cos(90-A))

But,
sin (90-A)=cosA and
cos(90-A)=sinA

So,


tan(90-A)=(cosA)/(sinA)

Which is the inverse of tangent, so


tan(90-A)=(1)/(tanA)

Therefore, the right answer is D.

User Oznu
by
8.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories