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Let A={1,2,3,4,5} and B={-2,-1,0,1,2,3,4...

Let A={1,2,3,4,5} and B={-2,-1,0,1,2,3,4,5}.
Onto functions from A to A such that `f(i) ne i` for all `i`, is

A

(a)44

B

(b)120

C

(c)56

D

(d)76

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ARIHANT MATHS-FUNCTIONS-Exercise (Questions Asked In Previous 13 Years Exam)
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  17. Let E={1,2,3,4} and F={1,2}dot If N is the number of onto functions fr...

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  18. Suppose f(x)=(x+1)^(2) " for " x ge -1. If g(x) is the function whos...

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  19. If F :[1,oo)->[2,oo) is given by f(x)=x+1/x ,t h e n \ f^(-1)(x) equal...

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