SSC CPO 2023 PYQ — Question 116

The correct answer is option 4 i.e. 3

sin (90 - A) = cos A

⇒  ${{cos 65°} \over sin25°}$ + ${{5sin19°} \over cos 71°}$ - ${{3cos 28°} \over sin62°}$

⇒ $\frac{cos 65}{sin(90 - 65)} + 5 \frac{sin(90 - 71)}{cos71} - 3 \frac{cos 28}{sin(90 - 28)}$

⇒ 1 + 5 - 3 = 3