Question

$(frac{2a}{b^2} - frac{1}{2a} ): frac{1}{b} + frac{1}{2a}$

Answer 1

1)2a/b²-1/2a=(4a²-b²)/2ab²
2)(4a²-b²)/2ab²*b=(4a²-b²)/2ab
3)(4a²-b²)/2ab +1/2a=(4a²-b²+b)/2ab