Question : The value of $\tan θ + \cot θ − \sec θ \operatorname{cosec} θ$ is:
Option 1: $2$
Option 2: $−2$
Option 3: $0$
Option 4: $\frac{1}{2}$
New: SSC CGL 2025 Tier-1 Result
Latest: SSC CGL complete guide
Suggested: Month-wise Current Affairs | Upcoming Government Exams
Correct Answer: $−2$
Solution :
$\tan^2\theta+\cot^2\theta-\sec^2\theta \operatorname{cosec}^2\theta$
= $\frac{\sin^2\theta}{\cos^2\theta}+\frac{\cos^2\theta}{\sin^2\theta}-\frac{1}{\sin^2\theta\cos^2\theta}$
= $\frac{\sin^4\theta+\cos^4\theta-1}{\sin^2\theta\cos^2\theta}$
= $\frac{(\sin^2\theta+\cos^2\theta)^2-2\sin^2\theta\cos^2\theta-1}{\sin^2\theta\cos^2\theta}$
= $\frac{1-2\sin^2\theta\cos^2\theta-1}{\sin^2\theta\cos^2\theta}$
= $–2$
Hence, the correct answer is $–2$.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Get Updates BrochureYour Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.




