Saturday 28 November 2015

EXPONENTIALS 1




If a2 = 15; find the value of a4.

solution

a4 = (a2)2.

a4 = (15)2.   [ since a2 = 15]

a4 = 15 x 15

a4 = 225   answer


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NECTA FORM II - 2012 QN. 8

If a2 = 12; find the value of a4.

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