Question

if 3sin+4cos=5 find the value of 4cos-3sin​

Answer 1

Step-by-step explanation:

So 4cos = 5-3sin

cos = (5-3sin)/4

and 3sin = 5-4cos

sin = (5-4cos)/3

4cos-3sin = (5-3sin)-(5-4cos)

and then simplify it to get the answer