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Let A = {1,2,3,4} and B = {7,8,9} , then...

Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relations is a mapping or not from set A to set B ?
`R_3 = {(1,8),(2,9),(3,8),(4,8)}`

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CHHAYA PUBLICATION-RELATION AND MAPPING -Very short answer type questions
  1. Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relati...

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  2. Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relati...

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  3. Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relati...

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  4. Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relati...

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  17. If f(x)=5^x , then prove : f(x+y)=f(x).f(y)

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