MCQ
cosec $^{2} \mathrm{A}$ बराबर होगा ?
  • A
    $\frac{1-\cos ^{2} A}{1+\cos ^{2} A}$
  • B
    $\frac{1+\cos ^{2} A}{1+\cot ^{2} A}$
  • $\frac{\sin ^{2} A+\cos ^{2} A}{1-\cos ^{2} A}$
  • D
    $\frac{\sin ^{2} A+\cos ^{2} A}{1+\sin ^{2} A}$

Answer

Correct option: C.
$\frac{\sin ^{2} A+\cos ^{2} A}{1-\cos ^{2} A}$
c

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