(2 sqrt(x)-5e^(-3x)+4secxtanx+3/x)dx
2^-4 ×3^0
-24/6-5-(-8)/-1
1/5+1/4+1/5
16x+6x-x2
1/3+1/4+1/5
0.028*10^-6
5/9+2/3+1/6
a^3 - 5a^2 + 8a -4 divided by a - 2
if f(x)=tanx,then prove that,f(2x)=2f(x)/1-(f(x))²
