plz solve who love maths question 3,4,10
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1
Answer:
x=7power2/9power2
7cube/9cube
343/279
Answered by
1
Step-by-step explanation:
3) x^2=49/81
x^2=(7/9)^2
x=7/9
x^3=343/729
or
x^3=x^2*x=(49/81)*(7/9)=343/729
10) (p/q)^-2= 1/(p/q)^2=q^2/p^2
[(a/b)^p=a^p/b^p
a^-b= 1/a^b]
q^2/p^2*(121/100)=1
121/100=p^2/q^2
(p/q)^2=121/100 [ example
p/q=11/root over 100 x^2=16
x=rootover16
x=8]
( p/q)^3= (121/100)*11/rootover100
=1331/100rootover100
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