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Let A={1,2,3,4,5} and f:A rarr A be an i...

Let A={1,2,3,4,5} and `f:A rarr A` be an into function such that `f(i) ne, forall i in A`, then number of such functions f are

A

1024

B

904

C

980

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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ARIHANT MATHS-FUNCTIONS-Exercise (Single Option Correct Type Questions)
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  7. If f(x) and g(x) are non-periodic functions, then h(x)=f(g(x)) is

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  13. Let x be the elements of the set A={1,2,3,4,5,6,8,10,12,15,20,24,30,40...

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  14. If A gt 0, c,d,u.v are non-zero constants and the graph of f(x)=abs(Ax...

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  15. If f(x)=x^(3)+3x^(2)+4x+asinx+bcosx, forall x in R is a one-one fuctio...

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  16. If two roots of the equation (p-1)(x^2 +x +1)^2 -(p+1)(x^4+x^2+1)=0 ar...

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  17. Let f(x)=x^(13)+2x^(12)+3x^(11)+...+13x+14 " and " alpha=cos""(2pi)/15...

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  18. Let f(x)=sin^(-1)2x + cos^(-1)2x + sec^(-1)2x. Then the sum of the max...

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  19. The complete set of values of a for which the function f(x)=tan^(-1)(x...

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  20. The domain of the function f(x)=sin^(-1)""(1)/abs(x^(2)-1)+1/sqrt(si...

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