MCQ
$\int \cos \frac{7 x}{9} d x=$
  • A
    $k+\sin \frac{7 x}{9}$
  • B
    $\frac{7}{9} \sin \frac{7 x}{9}+k$
  • $\frac{9}{7} \sin \frac{7 x}{9}+k$
  • D
    $k+\cos \frac{7 x}{9}$

Answer

Correct option: C.
$\frac{9}{7} \sin \frac{7 x}{9}+k$
C

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free