SSC CGL 7 06 2019 Shift 2 Paper

© examsiri.com

Question : 69 of 100

Marks: +1, -0

If

\cot \θ=\√{7},

then the value of

\ {\ {\cosec}^{2} \θ-\sec ^{2} \θ}/{\ {\cosec}^{2} \θ+\sec ^{2} \θ}

is:

$3/4$
$2/3$
$8/9$
$7/9$

Solution:

\ {\ {\cosec}^{2} \θ-\sec ^{2} \θ}/{\ {\cosec}^{2} \θ+\sec ^{2} \θ}

⇒

\ {\cot ^{2} \θ-1}/{\cot ^{2} \θ+1} \⇒\ {7-1}/{7+1}=\ {6}/{8}=\ {3}/{4}

© examsiri.com

Go to Question:

Prev Question

Next Question