Question

Integration of 1-cos x/1+cos x using rationalisation

Answer 1

Answer:

Step-by-step explanation:

Hope you will understand

Answer 2

Answer:  Step-by-step explanation: = 1- cos x/ 1+ cos x                                             = 1- cos x/1+cos x X 1-cos x/1-cos x                                             = (1-cos x)²/ (1²- cos x²)                                             =(1-cos x)²/ (sin x²)                                             =[1-cos x/ sin x]²