Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

If sinθ - cosθ = \(\frac{7}{13}\), find the value of sinθ + cosθ

Options:

\(\frac{17}{12}\)

\(\frac{7}{13}\)

\(\frac{13}{17}\)

\(\frac{17}{13}\)

Correct Answer:

\(\frac{17}{13}\)

Explanation:

⇒ sinθ - cosθ = \(\frac{7}{13}\)

⇒ \(\frac{P}{H}\) - \(\frac{B}{H}\) = \(\frac{7}{13}\)

⇒ \(\frac{P - B}{H}\) = \(\frac{7}{13}\)

Use triplets, (5, 12, 13)

P = 12, B = 5, H = 13

⇒ sinθ + cosθ = \(\frac{P}{H}\) + \(\frac{B}{H}\) = \(\frac{12}{13}\) + \(\frac{5}{13}\) = \(\frac{17}{13}\)