Question

if f(x)=2x+7 then find the value of f-1(2) + f 1.3 is equal to

Answer 1

ANSWER

Here,a = 1 and x = 1.3 and h = 1

. ‘. m = x - a = 1.3 - 1 = 0.3

h 1

‘ . ’ f (1.3) = f (1) + m∆f (1)

= 10 + 0.3 x 4

= 10 + 1.2 = 11.2

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