Question

22. If a, b, c are in continued proportion, prove that: (iii) a : c = (a? + b2) : (b2 + c) (v) abc (a + b + c)3 = (ab + bc + ca) (vi) (a + b + c) (a - b + c) = a2 + b2 + c2. ​

Answer 1

Answer:

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