Sunday, 19 November 2017

EXPONENTIALS 1


If 52w (400w) = 1000 ; Find w.

Solution

52w (400w) = 1000

(52)w (400w) = 1000

(25)w (400w) = 1000

(25 x 400)w = 1000

(10000)w = 1000

(104)w = 103   [since 103 = 1000]

104w = 103   (Bases are alike, so they cancel out)

4w = 3

4w = 3
4       4

w = 3/4

TRY THIS…………………………….


NECTA 2004 QN. 4b


If 32t (4t) = 6 ; Find t.

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