If a : b = 2 : 3 , b : c = 1 : 2 , then find the value of a : b : c

If A : B = 1 : 2, B : C = 3 : 4 and C : D = 5 : 6, then find the value of D : C : B.

If a = 2 , b = -2 and c = 2 , then find the value of a^2b + b^2c + c^2a

If A = 1/4 B and B = 1/2 c , then find the value of A:B:C .

If a=-2, b=-3, c = 2 then find the value of (ab)/(c) + 9 ?

"If A"= ({:(2, 3),(5, 1):}), B = ({:(a, b),(c, d):}) and AB = -13I, then find the value of a + b - c + d. (a) 5 (b) 3 (c) 2 (d) 1

In a triangle ABC, angle A = 60^(@) and b : c = (sqrt3 + 1) : 2 , then find the value of (angle B - angle C)

If a, b, c are positive and a + b + c = 1, then find the least value of (1)/(a)+(2)/(b)+(3)/(c)

The ratio of A : B = 1 : 3,B: C= 2:5 and C : D = 2:3 . Find the value of A:B:C:D