Answer: Click here to get an answer to your question ✍️ If a^2 + b^2 + c^2 = 250 and ab + bc + ca = 3 , then find a + b + c . Reply
Answer: a2+b2+c2=250 & ab+bc+ac=3, find a+b+c → the general formula (a+b+c)2=a2+b2+c2+2(ab+bc+ac) =250+2(3) =250+6 ∴(a+b+c)2=256 ∴a+b+c=256 ∴a+b+c=16 Reply
Answer:
Click here to get an answer to your question ✍️ If a^2 + b^2 + c^2 = 250 and ab + bc + ca = 3 , then find a + b + c .
Answer:
a2+b2+c2=250 & ab+bc+ac=3, find a+b+c
→ the general formula
(a+b+c)2=a2+b2+c2+2(ab+bc+ac)
=250+2(3)
=250+6
∴(a+b+c)2=256
∴a+b+c=256
∴a+b+c=16