RRB NTPC · Question 117
Solve \(\frac{1 -tan^2\theta}{tan^2\theta}\)
Show answer & explanation
Answer: (D) cot^2θ -1
Explanation
(1 − tan²θ)/tan²θ = 1/tan²θ − 1 = cot²θ − 1.
Railways PYQCBT 2 2017
RRB NTPC · Question 117
Answer: (D) cot^2θ -1
(1 − tan²θ)/tan²θ = 1/tan²θ − 1 = cot²θ − 1.