Question

find the value of AB+ BC + CA when a = - 2 b = - 3 and C = 2​

Answer 1

Answer:

AB+BC+CA

= 6-6-4

= -4

Answer 2

Answer:

A = - 2

B = - 3

C = 2

AB + BC + CA = (-2 x -3) + (-3 x 2) + (-2 x 2)

= 6+(-6)+(-4)

= 6-6-4 = 0-4 = - 4

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