Monday, 1 January 2018

EXPONENTIALS 8


If 52w (4w) = 0.00001 ; Find w.

Solution

52w (4w) = 0.00001

(52)w (4w) = 0.00001

(25)w (4w) = 0.00001

(25 x 4)w = 0.00001

(100)w = 0.00001

(102)w = 10-5 (Since  0.00001=10-5)

102w = 10-5   (Bases are alike, so they cancel out)

2w = -5

2w = -5
2       2

Hence w = -5/2 answer.

TRY THIS…………………………….


If 32t (4t) = 256 ; Find t.

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