# differentiation questionWatch

This discussion is closed.
#1
can sum1 differentiate y=(2^x)^3 for me please

the whole question is

differentiate

y= ln(3ln2x) + (2^x)^3

but d/dx of ln(3ln2x) is 1/(xln2x)

cheers
0
14 years ago
#2
y=(2^x)^3
dy/dx = 3(ln2.2^x)(2^x)^2
0
#3
ok well why can i not say,
y=(2^x)^3
using the rule (a^m)^n = a^mn,
y=2^3x
lny = 3x ln2
1/y(dy/dx) = 3ln2
dy/dx = 3ln2.y
dy/dx = 3ln2.(2^x)^3
0
14 years ago
#4
That's the same as kikzen's solution!
0
#5
oh yeh
0
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