If `f(x)=a^x,` which of the following equalities do not hold ?(i) `f(x – InterviewSolution

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1.	If `f(x)=a^x,` which of the following equalities do not hold ?(i) `f(x+2)-2f(x+1)+f(x)=(a-1)^2f(x)`(ii) `f(-x)f(x)-1=0`(iii) `f(x+y)=f(x)f(y)`(iv) `f(x+3)-2f(x+2)+f(x+1)=(a-2)^2f(x+1)`A. `f(x+2)-2f(x+1)+f(x)=(a-1)^(2)f(x)`B. `f(-x)f(x)-1=0`C. `f(x+y)=f(x) f(y)`D. `f(x+3)-2(x+2)+f(x+1)=(a-2)^(2)f(x+1)`
Answer» Correct Answer - D

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