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Given, x cos^(3)y + 3x cosy sin^(2)xy =1...

Given, `x cos^(3)y + 3x cosy sin^(2)xy =14` and `xsin^(3)y + 3x cos^(2)y siny=13`.
Number of values of y in the interval `[0, 6pi]` are-

A

5

B

3

C

4

D

6

Text Solution

Verified by Experts

The correct Answer is:
d
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