1 f(x+y,x-y)=xy ,then the arithmetic mean of f(x,y) is a- y b – x c- 0 d- none2 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 – 23 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
RAJEEV R , 9 Years ago
Grade 9
