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If f:(1,3,4} rarr {1, 2,5} and g:(1,2,5)...

If f:(1,3,4} `rarr` {1, 2,5} and g:(1,2,5) {1,3} be given by f = {(1, 2), (3,5),(4, 1)} and g: {(1,3), (2, 3), (5, 1)}, write down gof.

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The correct Answer is:
{(1,3), (3, 1) (4,3)}
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If the mapping f:{1,3,4}vec{1,2,5}a n dg:{1,2,5}vec{1,3}, given by f={(1,2),(3,5),(4,1)}a n dg={(2,3),(5,1),(1,3)}, write fogdot

Let A = (1,2,3,5), let f = f = (1,5), (2,1), (3,3), (5,2) and g = (1,3),(2,1),(3,2),(5,5) find gof

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Let f= {(1, 5), (2, 6), (3, 4)} g = {(4, 7), (5,8), (6,9)}. Then gof is :

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Fill in the blank: Let f = (1,2), (3,5), (4,1) and g = (2,3), (5,1), (1,3) then gof = _______and fog = _________.

BETTER CHOICE PUBLICATION-RELATIONS AND FUNCTIONS -PREVIOUS YEARS BOARD.S QUESTIONS FOR PRACTICE
  1. Check the injectivity and surjectivity of the following function: f :...

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  2. If f(x) =x/(x-1) then show that (fof)(x) = x.

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  3. If f:(1,3,4} rarr {1, 2,5} and g:(1,2,5) {1,3} be given by f = {(1, 2)...

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  4. If f : R rarr R defined by : f(x) = frac {3-2x}{4} is an inversible fu...

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  5. If f : R rarr R defined by : f(x) = frac {6-5x}{7} is an inversible fu...

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  6. Prove that the relation R in Z of integers given by: R = {(x, y): 2x -...

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  7. Let f:NrarrY, be a function defined as f(x) = 4x+3, where, Y = {y in ...

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  8. In a binary operation **: phi xx phi rarr phi is defined as a ** b = (...

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  9. If f(x) = 4x – 1 and g(x)=x^3 + 2, find gof

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  10. If f(x) = 4x – 1 and g(x)=x^3 + 2, find gof

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  11. If f(x) = sin x and g(x) = 2x, find fog.

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  12. Is f(x) = (x-1)/(x+1) invertible in its domain ? If so find, f^(-1) F...

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  13. Consider f:R^(+) rarr [-5, oo] given by f (x) = 9x^(2) + 6x - 5 show ...

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  14. If a**b=a/2+b/3 then find value of 2 ** 3.

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  15. Show that the relation R in the set R of real number defined as R = {(...

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  16. If R is the relation ‘lessthan from A={1,2,3,4,5} to B={1,4,5}. Write ...

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  17. If R is the relation ‘less than' from set A = {1, 2, 3, 4, 5} to B = {...

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  18. Show that R= {(a, b): a ge b} is reflexive and transitive but not sym...

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  19. If f(x)= [x], g (x) = abs(x), then find the value of (fog) (5/2) - (go...

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  20. If f:R rarr R is defined by f(x) = x^2 – 3x + 2, find f(f(x))

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