Q63 / 160 · AP EAMCET 2022 (07 Jul Shift 2) · Mathematics

$\cos \theta(\operatorname{cosec} \theta-\sec \theta)-\cot \theta=$

  • Correct answer
    A
    $-1$
  • B
    $1$
  • C
    $0$
  • D
    $\cos ^2 \theta-\tan ^2 \theta$

Solution

$\begin{aligned} & (\cos \theta)(\operatorname{cosec} \theta-\sec \theta)-\cot \theta \\ & =\frac{\cos \theta}{\sin \theta}-1-\cot \theta\end{aligned}$

Hence, the correct answer is option: 'A'.

Relevant Questions