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19-02-2020
Mathematics

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Expressed as the product of prime factors,
198 = 2 x 32 x 11 and 90 = 2 x 32 x 5.
Use these results to find
(a) the smallest integer, k, such that 198k is a perfect
square,

Respuesta :

amna04352 amna04352

19-02-2020

Answer:

22

Step-by-step explanation:

198 = 2×3×3×11

For a perfect square, factors have to occur in pairs

198×2×11 (because 3 is already twice)

198×2×11

198×22

198k = 198×22

k = 22

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