`A(b+c)=(b+c)a=ab+ac` where a,b,c are whole numbers. What is this property called?

A,b are any two whole numbers and if a+b = b+a , then this property is___

Find e^(ax) cos (bx+c) dx on R , where a,b,c are real number and b ne 0 .

If r. a = r.b = r.c = 0 where a,b,c are noncoplannar, then

If a,b,c are in GP then b is called ………

If (a xx b) xx c = a xx (b xx c) . Where a,b and c are any three vectors such that a.b != 0, b. c != 0 then a and c are

If a,b,c are in G.P where a,b,c are positive numbers and "log"(5c)/(a), "log" (3b)/(5c) and "log" (a)/(3b) are in A.P then the triangle whose sides are a,b, c is

a(b+c)=ab+ac is called ___ property.

If a, b and c are non-coplanar vectors and if d is such that d = (1)/(x) (a + b + c) and a = (1)/(y) (b + c + d) where x and y are non-zero real numbers, then (1)/(xy) (a + b + c + d) =

(ab)c=a(bc) is called…… property.

IF (a alpha + b )^(-2)+ ( abeta + b)^(-2) =1 , where alpha , beta are the roots of a x^2 + bx +c=0 then ac (ac +2)=