Question

Calculate the general solution of trigonometric equation square root of 16 cos power 4 x minus 8 cos square x + 1 + square root of 16 cos 4 x minus 24 square x + 9

Answer 1

Answer:

its answer is 4 is this right. If it is right

then pls click on thank you. and if it is wrong then tell me in comments section and my answer also.