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Set A has 3 elements and set B has 4 elements. The number of injection that can be defined from A to B is 

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Important Questions on Relation and Functions

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Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.2>Q 15
Let the function f:R→R be defined by fx=2x+sin x, x∈R. Then f is 
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IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.2>Q 17
The function f:R→R defined by fx=x+x2 is
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IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.2>Q 18
Function f:R→R;fx=ex2-e-x2ex2+e-x2 is
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Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.3>Q 19
If fx=e2x and gx=logx, x>0, then  fogx is equal to
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Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.3>Q 20
If f(x)=x1+x2 , then (fofof)(x)=
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Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.3>Q 21
If g(x)=x2+x-2and 12g(f(x))=2x2-5x+2, then fx can be
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Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.3>Q 22
Let the function f be defined by fx=2x+11-3x then f-1(x) is:
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IMPORTANT
Gamma Question Bank for Engineering Mathematics>Chapter 18 - Relation and Functions>EXERCISE 1.3>Q 23
The inverse of the function fx=10x-10-x10x+10-x is