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यदि alpha = sin(sin^(-1)1/3), beta =cos(...

यदि `alpha = sin(sin^(-1)1/3), beta =cos(cos^(-1)(1/sqrt(5))-sin^(-1)(2/sqrt(5)))` है, तो `beta^(2)/(3alpha - 4alpha^(3))^(2)` (का मान है-

A

1

B

2

C

3

D

4

लिखित उत्तर

Verified by Experts

The correct Answer is:
C
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