Ifa^2+b^2+c^2 = 1 and ab + bc + ca = 40, find a+b+c. step by step explain in maths
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Ifa^2+b^2+c^2 = 1 and ab + bc + ca = 40, find a+b+c. step by step explain in maths
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Answer:
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Explanation:
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Verified answer
a+b + c = ±9
Explanation:
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explanation is in the pic