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Add: 3a+b, 2a+4b, 5a-b...

Add: 3a+b, 2a+4b, 5a-b

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Add: 5a-4, 2a+3, 2a-4

Add: 2a^2b+5b^2a+7 , 3a^2b-2b^2a+6 , 8a^2b-b^2a+9 ,

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Let's add : 2a^2b + 5b^2a + 7, 3a^2b - 2b^2a +6, 8a^2b - b^2a + 9

Add a(2a+b-3c) and 4a(2c-a)

Which of the following has/have value equal to zero? |[8, 2, 7],[ 12, 3, 5],[ 16, 4, 3]| b. |[1//a, a^2,b c],[1//b,b^2,a c],[1//c,c^2,a b]| c. |[a+b,2a+b,3a+b],[2a+b,3a+b,4a+b],[4a+b,5a+b,6a+b]| d. |[2, 43, 3],[ 7, 35, 4],[ 3, 17, 2]|

Let A = { 1, 2, 3, 4, 5, 6}, B = { 2, 4, 6, 8 } . Find A – B and B – A .

Let A = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and B = { 2, 3, 5, 7 } . Find A ∩ B and hence show that A ∩ B = B .

Let a ,b >0, let 5a-b ,2a+b ,a+2b be in A.P. and (b+1)^2, a b+1,(a-1)^2 are in G.P., then the value of (a^(-1)+b^(-1)) is _______.

Solve by matrix inversion method the equations in each of the following: 2a - 5b + 1 = 0, 5a - 7b = 3