Question

find the x of above question​

Answer 1

Step-by-step explanation:

4sin^2x + 6 cos^2x = 5

4(1 - cos^2x) + 6 cos^2 x =5

4 - 4cos^2x + 6cos^2x =5

4 + 2cos^2x =5

2cos^2x =1

cos^2x =1/2

x = cos ^2 inverse (1/2)

= 45 degree

may be this is the answer ...