Help me please Найти производную функции: a) f(x) = (4√x + 3) (4√x - 3) + 2x^2 b) f(x) = (x^{2} + 5) (x^{2} - 4) + 2√x c) f(x) = √2x^2 - (3x - 2) (5x + 1) - √x
a) / ___ \ / ___ \
2*\4*\/ x - 3/ 2*\4*\/ x + 3/
4*x + --------------- + ---------------
___ ___
\/ x \/ x