Find the value of b :

`b/2 + b/3 = 1/6`

Find the value of b^(2) - 4ac , if (i) a= 3,b= 9 , c = 6 (ii) a= 2, b = - 8 , c = 8 (iii) a= 1, b = 1 , c = 1 .

If a = 3 , b = 2 , find the value of ( a^a + b^b )^-1

Find the values of a and b if A=B , where A=[[a+4,3b],[8,-6]],B=[[2a+2,b^2+2],[8,b^2-56]]

If ?is an operation on integers such that a? b=\ -a+b-(-2) for all integers a ,\ b . Find the value of 4? 3 (ii) (-2)? (-3) 6?(-5) (iv) (-5)? 6

Find the value of: |[1 a^2 a^3],[1 b^2 b^3],[1 c^2 c^3]|