Equation b=a square ×cos square×2π×beta×Gama÷alpha

. The unit of a, alpha, beta are metre , 1/ sec and m/sec. Respectively the unit of b and gamma are

1 answer

Use parentheses, cosine of what? Argument of cosine must come out unitless.
(1/alpha) cos^2(2p beta gamma) or cos^2(2pi beta gamma/alpha)