Can someone please tell me what they get to this problem
Find the derivative of the function
j(x)=square root x^10-x^8

Question

Can someone please tell me what they get to this problem
Find the derivative of the function
j(x)=square root x^10-x^8

inkyvoyd · Answer

If you say what you got first :)

anonymous · Answer

ok I got$$\frac{ 5x^9-4x^7 }{ (x ^{10}-x^8)\frac{ 3 }{ 2 }}$$

anonymous · Answer

that is supposed to be raised to 3/2 sorry

anonymous · Answer

is that what you got?

amistre64 · Answer

$$D_u[\sqrt{u}]=\frac{u'}{2\sqrt{u}}$$

anonymous · Answer

you mean the answer should be $$\frac{ 1 }{ 2\sqrt{10x^9-8x^7} }$$

amistre64 · Answer

no

amistre64 · Answer

your answer was almost correct, the 3/2 should have been 1/2  to indicate a sqrt

anonymous · Answer

ok your saing that the answer I posted previously was correct but the denominator needs to be square rooted

amistre64 · Answer

yes, .. or another way to write a sqrt is with an exponent of 1/2 .... not 3/2

anonymous · Answer

ok gotcha thanks

amistre64 · Answer

youre welcome