ExamBro
ExamBro
enEnglishhiहिन्दीguગુજરાતી
JEE Mains · Maths · STD 11 - 3. trignometrical ratios,functions and identities

જો \(\sin x=-\frac{3}{5}\), જ્યાં \(\pi < x < \frac{3 \pi}{2}\), તો \(80\left(\tan ^2 x-\cos x\right)=\) ...........

  1. A \(109\)
  2. B \(108\)
  3. C \(18\)
  4. D \(19\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(109\)

Step-by-step Solution

Detailed explanation

\( \sin x=\frac{-3}{5}, \pi\) \( \tan x=\frac{3}{4} \cos x=-\frac{4}{5} \) \( 80\left(\tan ^2 x-\cos x\right) \) \( =80\left(\frac{9}{16}+\frac{4}{5}\right)=45+64=109\)
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app