What is the simplified value of 1 + cot A cot(A/2)? – McqOptions

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1.	What is the simplified value of 1 + cot A cot(A/2)?
A.	cos(A/2)
B.	sin2(A/2)
C.	½ cosec2 (A/2)
D.	cos A
Answer» D. cos A

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