Find `a` and `b`, when `(a-1,b+5)=(2,3)`.

Find a and b , when (2a+b,11)=(1,a-3b).

Find a and b when (a-2b,13)=(7,2a-3b).

Find the values of a and b, when: (i) (a+3,b-2)=(5,1) (ii) (a+b,2b-3)=(4,-5) (iii) ((a)/(3)+1,b-(1)/(3))=((5)/(3),(2)/(3)) (iv) (a-2,2b+1)=(b-1,a+2)

Find the value of 12a^2+2ab+b^2 and a^3-b^3 when a=1, b=3.

If A={:((3,5),(2,a)),B={:((4,b),(2,9))and C={:((26,a),(14,45)) find a and b when 2A + 5B = C.

Evaluate : 2a^(3)-b^(3) when a=-1,b=2

Find the value of : a + 2b - 5c when a = 2, b = -3 and c = 1

Find, where possible, A + B, A - B, AB and BA stating with reasons, where the operations are not pssible, when A={:[(4,2,-1),(3,-7,1)]:}and B={:[(2,3),(-3,0),(-1,5)]:}

If A = ([3,5],[2,a]),B=([4,b],[2,9]) and C = ([26,a],[14,45]) find a and b when 2A+5B = C

Find the value of the expressions, when a= -1" and "b= 3 5a^(2)+4ab^(2)-8a^(2)b .