Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

If tanθ = \(\frac{12}{5}\)

find the value of  \(\frac{24cotθ - 5cosθ+5}{13cosθ + 5tanθ-1}\) .

Options:

\(\frac{5}{8}\)  

\(\frac{3}{8}\)  

\(\frac{1}{8}\)  

\(\frac{1}{9}\)  

Correct Answer:

\(\frac{1}{8}\)  

Explanation:

tanθ = \(\frac{12}{5}\) = \(\frac{P}{B}\) (Triplet 5 , 12 , 13)

B = 13

Put than and find

⇒ \(\frac{24cotθ - 5cosθ+1}{13cosθ + 5tanθ-1}\)

⇒ \(\frac{24×\frac{5}{12} - 5 ×\frac{13}{5}+5}{13\frac{5}{13}+5×\frac{12}{5}-1}\) 

⇒ \(\frac{10 - 13 + 5 }{5 + 12 -1}\) 

⇒ \(\frac{2}{16}\)

\(\frac{1}{8}\)