3 years ago

What is the least common multiple of forty -two and eighteen?

1 answer:

7 0

42,84,126
18, 36,54,72,90,108,126

that would be 126

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ser-zykov [4K]

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Step-by-step explanation:

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melomori [17]

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zepelin [54]

Answer:

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Step-by-step explanation:

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love history [14]

For this case we must find an expression equivalent to:

$(x ^ {\frac {1} {2}} * y ^ {-\frac {1} {4}})^{-2}$

By definition of power properties we have to:

$(a ^ n) ^ m = a ^ {n * m}$

So:

$x ^ {\frac {1 * -2} {2}} * y ^ {-\frac {1 * -2} {4}} =\\x ^ {\frac {-2} {2}} * y ^ {\frac {2} {4}} =\\x ^ {-1} *y ^ {\frac {1} {2}}$

We have by definition of properties of powers that: $a ^ {-1} = \frac {1} {a ^ 1} = \frac {1} {a}$

Then, rewriting the expression:

$\frac{y^{\frac{1}{2}}}{x}$

Answer:

$\frac{y^{\frac{1}{2}}}{x}$

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4 years ago

belka [17]

Could you show the problem, please? :)

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3 years ago