Question 140

If tan θ + cot θ = 2, then the value of $$tan^2\theta+cot^2\theta$$ is

Given : $$tan\theta+cot\theta=2$$

Using, $$(x+y)^2=x^2+y^2+2xy$$

=> $$(tan\theta+cot\theta)^2=tan^2\theta+cot^2\theta+2tan\theta cot\theta$$

Also, $$\because tan\theta=\frac{1}{cot\theta}$$

=> $$(tan\theta+cot\theta)^2=tan^2\theta+cot^2\theta+2$$

=> $$(2)^2=tan^2\theta+cot^2\theta+2$$

=> $$tan^2\theta+cot^2\theta=4-2=2$$

=> Ans - (A)

Get AI Help

Create a FREE account and get:

  • Free SSC Study Material - 18000 Questions
  • 230+ SSC previous papers with solutions PDF
  • 100+ SSC Online Tests for Free

Join CAT 2026 course by 5-Time CAT 100%iler

Crack CAT 2026 & Other Exams with Cracku!

Ask AI

Ask our AI anything

AI can make mistakes. Please verify important information.