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Which expression is equivalent to √4j^4/9k^8?

Which expression is equivalent to √4j^4/9k^8?-example-1

2 Answers

0 votes

( 2j^(2) )/( 3^(4) )
SQRT each individual bit: 4 and
j^(4) and 9 and
k^(8)
User Sduplooy
by
8.0k points
2 votes

Answer:

Option (4) is correct.

An equivalent expression to the given expression
\sqrt{(4j^4)/(9k^8)} is
(2j^2)/(3k^4)

Explanation:

Given expression
\sqrt{(4j^4)/(9k^8)}

We have to choose an equivalent expression to the given expression
\sqrt{(4j^4)/(9k^8)}

Consider the given expression
\sqrt{(4j^4)/(9k^8)}

Apply radical rule,


\sqrt[n]{(a)/(b)}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}


=(√(4)√(j^4))/(√(9)√(k^8))


\mathrm{Apply\:radical\:rule\:}\sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b},\:


√(4j^4)=√(4)√(j^4)


√(9k^8)=√(9)√(k^8)

We have,


=(√(4)√(j^4))/(√(9)√(k^8))


=(2√(j^4))/(3√(k^8))


\mathrm{Apply\:radical\:rule\:}\sqrt[n]{a^m}=a^{(m)/(n)}


=(2j^2)/(3k^4)

Thus, An equivalent expression to the given expression
\sqrt{(4j^4)/(9k^8)} is
(2j^2)/(3k^4)

User Mbaitoff
by
8.4k points

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