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If f(x)=(x+1)/x and phi(x)=(x^4+1)/(x^4)...

If `f(x)=(x+1)/x and phi(x)=(x^4+1)/(x^4) `then` phi(a)=__-- `where f(a)=5.

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A DAS GUPTA-Function-Exercise
  1. If f(x)=1-x/(1+x), x not equal to -1 then f{f(1/x)}=

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  2. If f(x)=cos(logx), then f(x)f(y)-1/2[f(x/y)+f(xy)]=

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  3. If f(x)=(x+1)/x and phi(x)=(x^4+1)/(x^4) then phi(a)=-- where f(a)=5.

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  4. If f(x) is a polynomial function of the second degree such tha f(0)=5,...

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  5. If f(x+1)=x^(2)-3x+2 then f(x) is equal to

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  6. If f is an even function defined on the interval (-5,5), then four rea...

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  7. If f(x) is a periodic function of the period k then f(ax+b) is a perio...

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  8. The value of f(x)=3sin((pi^2)/(16)-x^2) lie in the interval

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  9. If f:RrarrR be a function given f(x)=sqrt1- sqrt(1-x^2) then the domai...

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  10. If the function f : [2,+prop)rarrX be bijective wheras f(x)= 5-4x+x^2 ...

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  11. Find the domain f(x)=log(100x)((2 log(10) x+1)/-x)

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  14. If f(x)=cos[pi^(2)]x+cos[-pi^(2)]x, where [x] stands for the greatest ...

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  15. Let f(x) = log(x + sqrt(x^2 +1)) , then f'(x) equals.

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  16. If f(x)=log((1+x)/(1-x)), "then f "((2x)/(1+x^(2))) is equal to

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  17. Let g(x) be a function defined on [-1,1]. If the area of the equilater...

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  18. Find the real values of x for which the function f(x) = cos^(-1) sqrt(...

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  19. If f(x)=sinx+cosa x is a periodic function, show that a is a rational ...

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  20. The function f(x)=x[x] , is

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