1/SecA-tanA 1/secA tanA=2/cosA
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Step-by-step explanation:
1/secA-tanA + 1/secA+tanA
=1/(1/cosA-sinA/cosA) + 1/(1/cosA+sinA/cosA)
=cosA/1-sinA+cosA/1+sinA
=cosA(1+sinA)+cosA(1-sinA)/1-sin²A
=cosA(1+sinA+1-sinA)/cos²A
=2cosA/cos²A
=2/cosA
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