CUET Preparation Today
CUET
-- Mathematics - Section A
Definite Integration
$\int\limits_0^{2π}[|\sin x|+|\cos x|]dx$, where [.] denotes the greatest integer function, is equal to:
$π$
$2π$
$π/\sqrt{2}$
$π\sqrt{2}$
|sin x| and |cos x| and add :
$⇒I=\int\limits_0^{2π}[|\sin x|+|\cos x|]dx=\int\limits_0^{2π}1.dx=2\pi$