CUET Preparation Today
If tanθ + cotθ = 4, then find the value of tan2θ + cot2θ. |
10 12 16 14 |
14 |
tanθ + cotθ = 4 on squaring both side , ( tanθ + cotθ)² = 4² tan²θ + cot²θ + 2tanθ. cotθ = 16 { tanθ = \(\frac{1}{cotθ}\) } tan²θ + cot²θ = 16- 2 tan²θ + cot²θ = 14 |
