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Question

The value secθ × tanθ is positive if θ belongs to second quadrant. 



A

True

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B

False

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Solution

The correct option is A

True


In second quadrant,x-intercept is negative.

So, secθhypotenousadjacenta2+b2a = -ve value

tanθoppositeadjacentba = -ve value

secθ × tan θ = (-) × (-) = +ve value


Mathematics

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