A binary composition `*` is defined on `R` as under `a * b = ab + 3; a,b epsilon R` Find `2 *4.`

A binary composition '*' is defined on R xx R by (a,b) * (c,d) = (ac, bc+d), wherea,b,c, d in R. Find (2,3)* (1,-2)

A binary composition o in the set of real numbers R is defined aob=a+b-1AA a,b in R Find 40(509)

A binary operation * is defined on the set of real numbers R by a*b = 2a + b - 5 for all a, b in R If 3* (x*2) = 20, find x

Let the binary operation on Q defined as a * b = 2a + b - ab , find 3*4 .

For the binary operation * defined on R-{1} by the rule a * b=a+b+a b for all a ,\ b in R-{1} , the inverse of a is

Fill in the blank: Let R_1 be the set of all reals except 1 and * be the binary operation defined on R_1 as a* b = a + b - ab for all a, b in R_1 . The identity element with respect to the binary operation * is ____________.

If the binary operation ** , defined on Q , is defined as a**b=2a+b-a b , for all a **\ b in Q, find the value of 3**4

Let * be the binary operation defined on R by a * b = 1 + ab for all a, b in R, then the operation * is