Home
Class 12
MATHS
If f(x)=(a sin x+b cosx)/(c sinx+dcosx) ...

If `f(x)=(a sin x+b cosx)/(c sinx+dcosx)` is decreasing for all `x`, then

A

(a) `ad-bclt0`

B

(b) `ad-bcgt0`

C

(c) `ab-cdgt0`

D

(d) `ab-cdlt0`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

The function f(x)=(lambdasinx+2cosx)/(sinx+cosx) is increasing, if

The function f(x) = (1-sin x + cos x)/(1+sin x + cosx) is not defined at x = pi . The value of f(pi) , so that f(x) is continuous at x = pi is

int e^x sin x(sinx + 2cosx)dx =

IF f(x)=1-x^3-x^5 is decreasing for

Test weather the function f(x)= x^3 + 6 x^2 +12x-5 is increasing or decreasing for all x in R.

int(cos2x)/((sinx+cosx)^(2))dx is equal to

If f(x)=sinx-cosx , the function decreasing in 0 le x le 2pi is

int(sinx+cosx)/(sqrt(1+sin2x))dx