Question

Question 20 Find the derivative of the following functions (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers): (a + bsinx) / (c + d cos x)

Class X1 - Maths -Limits and Derivatives Page 318

Answer 1

Refer to the above

Hope you get your answer.

Answer 2

y =(a + bsinx) / (c + d cos x)
using division rule

Differentiating w.r.t x

=>
dy/dx ={ (c+dcosx) d/dx(a+bsinx)-(a+bsinx)d/dx(c+dcosx) }/(c+dcosx)²

= (c+dcosx)(bcosx)-(a+bsinx)(-dsinx)/(c+dcosx)²
= (c+dcosx)(bcosx)+(a+bsinx)(dsinx)/(c+dcosx)²