AP EAMCET202318 May 2023Morning ShiftMathematicsLimitsActual

If f(x)= 1-x+ 9 x^2+10 x+1 2 x , then _ x -1⁻ f(x)=

Options

A1
B-1
C0
D-1 / 5

Correct answer

B. -1

Step-by-step solution

f(x)= 1-x+ 9 x^2+10 x+1 2 x = 1-x+ (9 x+1)(x+1) 2 x aligned & _ x -1⁻ f(x)= _ h 0 1-(-1-h)+ (9(-1-h)(-1-h+1) 2(-1-h) & _ h 0 2+h+ 9 h^2+8 h -2(1+h) = 2 -2 =-1 aligned

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