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Which of the following identities is correct?निम्न में से कौन-सी पहचान सही है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (1+\tan^2 x=\sec^2 x)(1+\tan^2 x=\sec^2 x)
The correct identity is (1+\tan^2 x=\sec^2 x). In identity-based questions, check signs and fractions carefully.सही पहचान (1+\tan^2 x=\sec^2 x) है। पहचान आधारित प्रश्नों में चिन्ह और भिन्न को सावधानी से देखें।
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