f f(x) = 3cosx, then f ¢(x) at x = Π 2 = is: - Vidyadip

MCQ

f f(x) = 3cosx, then f ¢(x) at $ \text{x} = \frac{Π}{2}$ = is:

A
-3
B
3
C
0
D
-1

✓

Answer

-3

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

Explore more

More "M.C.Q (1 Marks)" from Limits and Derivatives→Limits and Derivatives — all question types→MATHS STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

If point p lies in first octant, then the sign of x- coordinate will always be:

A line passes through (2, 2) and is perpendicular to the line 3x + y = 3. Its yintercept is:

$\frac{1}{3}$
$\frac{2}{3}$
$1$
$\frac{4}{3}$

What is the approximate radius of the circle whose equation is $(\text{x}-\sqrt{3})^2+(\text{y}+2)^2=11$:

If $A - B =\frac{\pi}{4}$, then $(1+\tan A )(1-\tan B )$ is equal to

A point on XOZ-plane divides the join of (5, -3, -2) and (1, 2, -2) at:

The value of $\cos^2\Big(\frac{\pi}{6}+\text{x}\Big)-\sin^2\Big(\frac{\pi}{6}-\text{x}\Big)$ is:

$\frac{1}{2}\cos^2\text{x}$
$0$
$-\frac{1}{2}\cos2\text{x}$
$\frac{1}{2}$

In a three dimensional space, the equation 3x - 4y = 0 represents:

Choose the correct answer.
The locus of a point for which x = 0 is:

x > 5 is, _____________________?

The combined mean of three groups is 12 and the combined mean of first two groups is 3. If the first, second and third group have their mean as 2, 3 and 5 times respectively, then the mean of third group is: