Question

if 3cotA =4,then find the value of 3cosA+2sinA

_______3cosA-2sinA

(/^-^(^ ^*)/(・o・)​

Answer 1

Answer:

Here,

4 sinA = 3

or, sinA = 3/4

Now,

Cos2A = 1 - 2 sin2A

= 1 - 2(3/4)2

= 1 - 9/8

= -1/8.