sundaysong01 sundaysong01
  • 12-04-2018
  • Mathematics
contestada

Martha made a mistake. In which step did Martha first make a mistake, and what is a correct expression for that step?

Martha made a mistake In which step did Martha first make a mistake and what is a correct expression for that step class=

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calculista
calculista calculista
  • 22-04-2018
we have  that
 f²{k^6/[k^4*k^3]}^-3

step 1
 f²{k^6/[k^(4+3)]}^-3---------> f²{k^6/[k^7]}^-3-------> step 1 is correct

step 2
 f²{k^6/[k^7]}^-3------>  f²{k^(6-7)]}^-3---->  f²{k^(-1)}^-3----> step 2 is correct

step 3
f²{k^(-1)}^-3------> f²{k^[(-1)*(-3)]}-----> f²{k^(3)}
therefore
Martha made a mistake in the step 3

the answer is
step 3
f²k³

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