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If f(x)=sin(logx ) then f(xy)+f(x/y)-2f(x) cos(logy )=
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If f(x)=sin(logx ) then f(xy)+f(x/y)-2f(x) cos(logy )=
If f(x)=sin(logx ) then f(xy)+f(x/y)-2f(x) cos(logy )=
If `f (x) = sin (log x) ` then the value of `f(xy)+f((x)/(y))-2f (x) cos (log y)` is-
If f(x)=cos (log x), then f(x) · f(y)-1/2[f(x/y)+f(x y)] has the value (1983,1 M) (a) -1 (b) 1/2 ......
If `f(x)=cos (logx)`, then `f(x)f(y)-1/2[f(x/y)+f(xy)]=`
If f satisfies the relation `f (x + y) + f (x - y) =2f (x) f (y) AAx,y in K and f (0) !=0`; th
If f(x) = cos (log x), then f(x) f(y) - 1/2 {f(x/y)+f(xy)} has the value a)-1 b) 1/2c) -2 d) none o
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If f(x)=cos(log _e x), then f(x) f(y)-1/2[f(x/y)+f(x y)] has value (2) 1 / 2 (1) -1 (4) 0 (3) -2
If `f(x)=cos(logx)`, then `f(x)f(y)-1/2[f(x/y)+f(xy)]`=
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If `f(x)=cos(lnx)` then `f(x)f(y)-1/2(f(x/y)+f(xy))` has the value
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`f(x-y)+f(x+y)=2f(x)f(y) AA x,y in R` and for some value of `alpha in R^(+)`, `f(alpha)=-1` th
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