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Question

If xsin45cos260=tan260cosec30sec45cot230, then x =



A

2

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B

4

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C

8

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D

16

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Solution

The correct option is A

8


We have:

xsin45cos260=tan260cosec30sec45cot230

x×(12)×(12)2=(3)2×(2)(2)×(3)2

x42=632

x=632

x=632×42

x=8


Mathematics
RD Sharma
Standard XI

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