SSC CGL 26 Oct 2014 Shift 1 Paper

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Question : 140 of 200

Marks: +1, -0

{tan^2 θ}/{secθ+1}

- sec θ is equal to

1
0
–1
None of these

Solution:

Expression =

{tan^2 θ}/{secθ+1}

- sec θ
=

{sec^2 θ-1}/{secθ+1}

- sec θ
=

{(secθ+1)(secθ-1)}/{secθ+1}

- sec θ
= sec θ - 1 - sec θ = -* 1

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