SSC CHSL 8 Jan 2017 Shift 1 Paper

Question : 58 of 100

Marks: +1, -0

(1 + sinA)/(1 - sinA) is equal to?

Solution:

Expression :

{1+sinA}/{1-sinA}

Replacing sinA by

{1/{cosecA}

{1+1/{cosecA}}/{1- 1/{cosecA}}

{{1+cosecA}/{cosecA}}/{{cosecA-1}/{cosecA}}

{ cosecA+1}/{cosecA-1}

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