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Examine each of the following relations ...

Examine each of the following relations given below and state in each case, giving resons whether it is function or not?
(i) R={(2,1), (3,1), (4,2)}, (ii) R={(2,2), (2,4) ,(3,3),(4,4)}
(ii) R={(1,2),(2,3),(3,4),(4,5),(5,6),(6,7)}

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KUMAR PRAKASHAN-OBJECTIVE SECTION AS PER NEW PAPER SCHEME -Relations and Functions (True /False Statement )
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  2. If n(A) = p and n (B) = q then numbers of non void relations from A to...

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  3. Examine each of the following relations given below and state in each ...

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  4. A = {3k| k in N} B = {3k -1|k in N} and C = {3k-2| k in N}. Then A , B...

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  5. n(A DeltaB) = n(A) + n(B) - 2n (A cap B)

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  6. If [n(A)]^(3) = 8 and {0,1,0} in A^3 then a = {0,1}

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  7. A = Set of odd natural numbers B = set of even natural numbers F=...

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  8. f: R rarr R, f(x) = sec^(2)x - tan^(2) x is constant function .

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  9. Graph of constant function is line parallel to Y - axis (means graph i...

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  10. For xne0 ,f(x) = (x-|x|)/(|x|) then f(-1)=0

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  11. f:R^(+)rarrR^(+),f(x)=x^2+4(sqrtx)+3 then f(4) = 24.

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  12. Graph of identity function passes from origin and also from first , th...

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  13. f and g are real functions defined by f(x)= 2x + 1 and g(x) =4x -7. If...

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  14. Let R be the relation on Z defined by R= {(a,b): a, b in Z, a-b "is an...

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  15. Find the domain of the function f(x)=(x^(2)+3x+5)/(x^(2)-5x+4)

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  16. Set A has three elements and B = {a, b, c,d} then numbers of elements ...

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  17. If n(A) = p and n (B) = q then numbers of non void relations from A to...

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  18. Let R = {(1, 3), (2, 2), (3, 2)} and S = {(2, 1), (3, 2), (2, 3)} be t...

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  19. A = {3k| k in N} B = {3k -1|k in N} and C = {3k-2| k in N}. Then A , B...

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  20. n(A DeltaB) = n(A) + n(B) - 2n (A cap B)

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