SSC CGL 2023 PYQ — Question 75

SSC CGL - 17 July 2023 - Shift 2 • Quantitative Aptitude • Q75

If sinØ = 45\frac{4}{5}. then find the value of tanØ - CotØ

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. 712\frac{7}{12}.

Given that

If sinØ = 45\frac{4}{5}

As we know that

CosØ = √(1 - sin2Ø)

So, cosØ = √(1 - (4/5)2)

cosØ = 3/5

the value of tanØ - CotØ

⇒ sinØ/cosØ - cosØ/sinØ

⇒ (4/5)/(3/5) - (3/5)/(4/5)

⇒ (4/3) - (3/4)  

⇒ (16 - 9)/12 = 7/12