Question

Find the value of tan 225°.

(a) \(\frac {1}{\sqrt 2}\)

(b) 1

(c) -√2

(d) \(\frac {-1}{\sqrt 2}\)

I got this question in an online interview.

This interesting question is from Trigonometric Ratios of Complementary Angles in section Trigonometry of Mathematics – Class 10

Answer 1

Correct choice is (b) 1

For explanation: Tan 225° = Tan (180° + 45°)

= Tan 45°

= 1