→a,→b,→c are the edges of a cube of unit length and →r be any – InterviewSolution

1.	→a,→b,→c are the edges of a cube of unit length and →r be any unit vector inside the cube the \|→a×→r\|2+∣∣→b×→r∣∣2+\|→c×→r\|2 is
Answer» $\to a, \to b, \to c$ are the edges of a cube of unit length and $\to r$ be any unit vector inside the cube the ${\| \to a \times \to r \|}^{2} + {∣ ∣ \to b \times \to r ∣ ∣}^{2} + {\| \to c \times \to r \|}^{2}$ is

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