Find the value of 2 cot A + 3 cos A if sin a = root 3/2
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sinA=
2
3
(Given)
2cot
2
A−1
=2cot
2
A+2−2−1
=2(cot
2
A+1)−3
=2cosec
2
A−3
=
sin
2
A
2
−3
=2(
3
2
)
2
−3
=
3
8
−3
=
3
−1
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