1) f'(x) = 102(x/5+13)^101(1/5) = 102(x+65)^101/52) f'(x) = e^6*cosx3) f'(x) = -1/ln(x) + 1/x(ln(x))^2
1) f'(x) = 102(x/5+13)^101(1/5) = 102(x+65)^101/5
2) f'(x) = e^6*cosx
3) f'(x) = -1/ln(x) + 1/x(ln(x))^2