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Q.

The set of values of ‘x’ for which tan3x-tan2x1+tan3xtan2x=1 is

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a

θ

b

π/4

c

nπ+π4; nz

d

2nπ+π4; nz

answer is A.

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Detailed Solution

tan3x-tan2x1+tan3x tan2x=1  tan(3x-2x)=1 tan x=1  x=π4 is not possible

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