Typo in Equation 3.7 of Prof. Tsai's book Theory of Composites Design

We were warned by Dmitry that there is a typo on Equation 3.7 (Section
3, page 3.8, item 3.4) for the multiple angle transformation. It says:

m^4 = (3 + COS2T + COS4T)/8,

but it should read:

m^4 = (3 + 4COS2T + COS4T)/8.

Please refer to the attached document.

Thanks, Dmitry, for pointing that out.