Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

If tanA =\(\frac{1.2}{0.5}\), then

find the value of (26 cosA + 24 cotA)

Options:

22

15

20

10

Correct Answer:

20

Explanation:

tanA =\(\frac{1.2}{0.5}\)=\(\frac{12}{5}\)=\(\frac{P}{B}\)   [Triplet 12, 5 ,13]

H = 13

⇒ 26 cosA + 10 cotA

= 26 × \(\frac{5}{13}\) + 24 × \(\frac{5}{12}\)

= 10 + 10 = 20