Question

prove it step by step please​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

$\frac{1}{1 + Cos^{2}x } + \frac{1}{1 + Sec^{2}x } \\\\\frac{1 +Sec^{2} x+ 1 + Cos^{2}x }{ (1 + Cos^{2}x) ( 1+ Sec^{2}x)\\ } \\\frac{2 + Sec^{2}x + Cos^{2}x }{2 + Sec^{2}x + Cos^{2}x } \\\\= 1$