differentiation question Watch

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manps
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#1
Report Thread starter 14 years ago
#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 :tsr:
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kikzen
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#2
Report 14 years ago
#2
y=(2^x)^3
dy/dx = 3(ln2.2^x)(2^x)^2
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manps
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#3
Report Thread starter 14 years ago
#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
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shift3
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#4
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#4
That's the same as kikzen's solution!
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manps
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#5
Report Thread starter 14 years ago
#5
oh yeh :rolleyes:
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