sec + tan = [cos]÷(1-sin)
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sec+tan=[cos]/(1-sin)
1/cos + sin/cos = cos/1-sin
1+sin×1-sin = cos^2
1-sin^2 = cos^2
cos^2=cos^2
cos^2/cos^2 = 1
answer is 1
1/cos + sin/cos = cos/1-sin
1+sin×1-sin = cos^2
1-sin^2 = cos^2
cos^2=cos^2
cos^2/cos^2 = 1
answer is 1
kunal2016:
but we have to prove that sec + tan is equal to cos upon 1-sin
oh sorry done by mistake
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