a) (2 + 2x)5
There are 6 terms
$2^5 \; + \; 5(2)^4 (2x)^1 \; + \; 10(2)^3(2x)^2 \; +\; 10(2)^2 (2x)^3$ + …………
Simplifies to
$32 + 160x + 320x^2 + 320x^3$ + ………………..
(2x = 0.03;) x = 0.015
32 + 160(0.015)2
+ 320(0.015)3 + ………….
32. + 2.4 + 0.072 + 0.00108 + ……….
34.473
34.5 correct to 3 s.f
johnmulu answered the question on March 7, 2017 at 13:13
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