24. Consider the following statements. (i) If u and v are orthogonal in R³ then ||u + v|| = ||u – v|| (ii) ||u||²+

Question

24. Consider the following statements.
(i) If u and v are orthogonal in R³ then ||u + v|| = ||u – v||
(ii) ||u||²+ ||v||²||u+v||²+
||uv||² for all u, v in R³.
Which of the above statements is always true?
(a) neither (b) (i) only (c) (ii) only (d) (i) and (ii)

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