Question

if a= 1 , b = -2 c= 3 evaluate the following ab +bc+ca​

Answer 1

Answer:

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Step-by-step explanation:

Given :-

if a= 1 , b = -2 c= 3

Find :-

The value of ab +bc+ca

Solving :-

$ab +bc+ca \\ = > 1( - 2) + ( - 2)(3) + 3(1) \\ = > - 2 - 6 + 3 \\ = > - 5$