The value pi/24 is a solution for the equation 4 cos^4 (4x) - 3

False

Step-by-step explanation:

4 cos^4 (4x) - 3 = 0

Substitute into the equation

4 cos^4 (4pi/24) - 3 = 0

4 cos^4 (pi/6) - 3 = 0

Take the cos pi/6

4 (sqrt (3) / 2) ^4 - 3 = 0

Take it to the 4th power

4 (9/16) - 3 = 0

9/4 - 3 = 0

9/4 - 12/4 = 0

-3/4 = 0

False