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If `x in (0, (pi)/(2)) and sinx=(3)/(sqrt(10))`,
Let `k=log_(10)sinx+log_(10)cos x+2log_(10)cot x +log_(10) tan x` then the value of k satisfies

A

`k=0`

B

`k+1=0`

C

`k-1=0`

D

`k^(2)-1=0`

Text Solution

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The correct Answer is:
B, D
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