MCQ
$\frac{1+\tan ^{2} A}{\operatorname{cosec}^{2} A}$ बराबर होता है ?
- A$\sec ^{2} A$
- B$\operatorname{cosec}^{2} A$
- C$\cot ^{2} A$
- ✓$\tan ^{2} A$
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