Answers please
I will mark u as brainlist
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The answer is 6. Please mark me brainliest. Hope it helps you.
Step-by-step explanation:
a) a² + b² + c²
= 1² + 2² + 3²
= 1 + 4 + 9 = 14
b) ab +bc +ca
= (1 x 2) + ( 2 x 3) + (3 x 1)
= 2 + 6 + 3 = 11
Given,
a + b + c
1 + 2 + 3
= 6
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