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1 f(x+y,x-y)=xy ,then the arithmetic mean of f(x,y) is a- y b – x c- 0 d- none 2 the function y=f(x) such that f(x+1/x)= (x^2+1/x^2) a – 2-x^2 b- x^2 -2 c – x^+4 d – 4x^2 – 2 3 if f(x) is an exponential function and x1,x2,x3 formn an A.P than f(x1),f(x2),f(x3) are in a-A.P b-G.P c-H.P d none of these

1 f(x+y,x-y)=xy ,then the arithmetic mean of        f(x,y) is
   a- y
   b – x
   c- 0
   d- none
2  the function y=f(x) such that f(x+1/x)=               (x^2+1/x^2)
   a – 2-x^2
   b-  x^2 -2
   c – x^+4
   d – 4x^2 – 2
3  if f(x) is an exponential function and               x1,x2,x3 formn an A.P than                         f(x1),f(x2),f(x3) are in
    a-A.P
    b-G.P
    c-H.P
    d none of these
 

Grade:9

1 Answers

Riddhish Bhalodia
askIITians Faculty 434 Points
5 years ago
The answers are in the image
512-1393_2016-02-21-211522.jpg

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