- Home
- Standard 11
- Mathematics
Trigonometrical Equations
medium
Let $f(x) = \cos \sqrt {x,} $ then which of the following is true
A
$f(x)$ is periodic with period $\sqrt 2 \pi $
B
$f(x)$ is periodic with period $\sqrt \pi $
C
$f(x)$ is periodic with period $4{\pi ^2}$
D
$f(x)$ is not a periodic function
Solution
(d) If $f(x) = \cos \sqrt x $, then $f(x)$ is not a periodic function.
Standard 11
Mathematics