Question

if a =1,b=2,c=-3 find the value of following expression a√2 +b√2+c√2-ab-bc -ca
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Answer 1

Given,

a=1, b= 2, c= 3

then

a√2+b√2+c√2-ab-bc-ca

=1√2+2√2+3√2-(1).(2)-(2).(3)-(3).(1)

=6√2-2-6-3

=6√2-11 Ans.