SSC CGL 2023 PYQ — Question 59

SSC CGL - 27 July 2023 - Shift 1 • Quantitative Aptitude • Q59

If A + B = 90° and sin⁡A=35\sin A = \frac{3}{5}, then the value of tan B is ______.

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 43\frac{4}{3}.

sin⁡A=35\sin A = \frac{3}{5} = p/b

⇒ H2 = p2 + b2

⇒ 25 = 9 + b2

⇒ b = 4

A + B = 90°

⇒ A = 90° - B

tan A = p/b = 3/4

⇒ tan (90° - B) = 3/4

⇒ cot B = 3/4                      {cotx = 1/tanx}

So, tan B = 4/3