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Q.

Choose the correct answer and justify your choice:

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a

b

c

2

d

answer is A.

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Detailed Solution

Concept- To solve this problem, we will substitute in the given expression.

The given trigonometric expression is

.
As we know,

Now, we will substitute

in the given expression.
Question Image

Question Image

Multiply numerator and denominator by

Hence, the correct answer is option 1)

.

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