Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

If $5 \cot \theta=3$, find the value of $\frac{6 \sin \theta-3 \cos \theta}{7 \sin \theta+3 \cos \theta}$.

Options:

$\frac{11}{40}$

$\frac{20}{41}$

$\frac{21}{44}$

$\frac{44}{21}$

Correct Answer:

$\frac{21}{44}$

Explanation:

5 cotθ = 3

cotθ = \(\frac{3}{5}\) = \(\frac{B}{P}\) 

Now,

\(\frac{6sinθ - 3cosθ}{7sinθ + 3cosθ}\)

= \(\frac{6P - 3B}{7P + 3B}\) 

= \(\frac{6 × 5 - 3×3}{7×5 + 3×3}\)

= \(\frac{30 - 9}{35 + 9}\)

= \(\frac{21}{44}\)