If A = 30o, what is the value of : $\fr

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Home Questions HMPFCP937D

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

If A = 30^o, what is the value of :

$\frac{[6sinA+9cosecA-cot^2A]}{12sinA}$

Options:

-6

-3

Correct Answer:

Explanation:

$\frac{[6sinA+9cosecA-cot^2A]}{12sinA}$

Put A = 30º

= $\frac{[6sin30º+9cosec30º-cot^230º]}{12sin30º}$

= $\frac{[6 × 1/2 +9×2 - 3 ]}{12×1/2}$

= 3