What is the simplified value of \({\left( {\frac{1}{{sec\;A\; + \;tan\ – McqOptions

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1.	What is the simplified value of \({\left( {\frac{1}{{sec\;A\; + \;tan\;A\;}}} \right)^2}\)
A.	secA + tanA
B.	sinA cosA
C.	(1 – sinA)/(1 + sinA)
D.	(1 – cosA)/(1 + cosA)
Answer» D. (1 – cosA)/(1 + cosA)

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