Trigonometric Equations Question 317

Question: In a right triangle $ AC=BC $ and D is the mid point of AC cotangent of angle $ DBC $ is equal to

Options:

A) 2

B) 3

C) 1/2

D) 1/3

Show Answer

Answer:

Correct Answer: A

Solution:

  • $ \tan \alpha =\frac{a/2}{a}=\frac{1}{2}\Rightarrow \cot \alpha =2 $ .