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For every a, b in N a" @ "b=a^(2)" whe...

For every `a, b in N`
`a" @ "b=a^(2)" when "(a+b)" is even"`
`=a^(2)-b^(2)" when "(a+b)" is odd"`
`a#b=b^(2)" when "axxb" is odd"`
`=a^(2)-b^(2)" when "axxb" is even"`
Find the value of `20#(21" @ "22):`

A

0

B

2249

C

-1849

D

can't be determined

Text Solution

Verified by Experts

The correct Answer is:
D
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QUANTUM CAT-FUNCTIONS AND GRAPHS-QUESTION BANK
  1. P(A, B)=AxxB,S(A,B)=A-B,D(A,B)=A+B D(P(3, 5), S(5, 3)) is equal to :

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  2. P(A, B)=AxxB,S(A,B)=A-B,D(A,B)=A+B P(S(D(7, 3), P(2, 3)), P(6, 5))) ...

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  3. For every a, b in N a" @ "b=a^(2)" when "(a+b)" is even" =a^(2)-b^...

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  4. What is the average of all two digit natural numbers?

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  5. If p^(2) + q ^(2) = 7 pq, then the value of (p)/(q) + (q)/(p) is equal...

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  6. If M(a, b)=a^(2)+b^(2)+ab,N(a, b)=a^(2)+b^(2)-ab. Find the value of M(...

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  7. If f(x)=x^(3)-x^(2), then f(x+1) is :

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  8. Find the value of [(5cup4)veevee(2cupcupcup3)]cup(8vee3):

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  9. Which of the following is true?

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  10. x@y = (x + y)^2 x#y = (x-y)^2 Find the value of (20@4)#35:

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  11. x@y = (x + y)^2 x#y = (x-y)^2 Find the value of 12#(14@(12#13)):

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  12. x@y = (x + y)^2 x#y = (x-y)^2 Find the value of (9#7)@(21#5):

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  13. x@y = (x + y)^2 x#y = (x-y)^2 (2@2) + (3#3) - (4@4) + (5#5) is equ...

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  14. (XAT[MAT{2, CAT(3, XAT[3, 2])}, 5])/(CAT[4, XAT{MAT(2, -5), 4}] :

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  15. (XAT(r, s))/(MAT(r,s)) = 2 (i) r = 3, s = 5 (ii) r = -3, s = -5

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  16. a and b are any numbers and x and y are any non negative integers. l...

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  17. a and b are any numbers and x and y are any non negative integers. l...

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  18. The average age of a committee of eight members is 40 years. A member ...

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  19. Find the value of 2#((7@(4#5)@3) :

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  20. In a class, there are 40 boys and their average age is 16 years. One b...

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