Please solve fast ..... tmrw is my test
if a=2,b=3,c=4 find ab +bc+ca
Using identity
Please ans fast. ...........
mowjoshu:
The ans is 1/9
Answers
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ab + bc + ca
= 2×3 + 3×4 + 4×2
= 6 + 12 + 8
= 26
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