book Maths Puzzle Numerical Ability

Given that (3x � a)(x � 2)(x � 7) = 3x3 � 32x2 + 81x � 70, determine
the value of a.

Read Solution (Total 0)

book Other Question

Suppose that an isosceles triangle has sides of length a,a, and b and is such that cos(2A)=sin(B). Show that sin^2(B)= -2sin(A)cos(A)cos(B). what is the smallest number that is divisible dy four different primes?Why or why not?