। समीकरण sec-2x =1- tan2x का मुख्य हल – InterviewSolution

1.	। समीकरण sec-2x =1- tan2x का मुख्य हल और व्यापक \|हल ज्ञात कीजिए।Find the general solution and principal solutionof the equation sec-2x = 1- tan2xc .
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