Let a- b and c be three vectors such that a - b - c - 0- and -a- - 10- -b- - 6 and -c- - 14-Fund the value of a- b - b - c - c - a-

The correct option is B 166 a+b+c=0 ∴ (a+b+c).(a+b+c)=0 ∴ |a|^2+|b|^2+|c|^2+2(a.b)+2(b.c)+2(c.a)=0 ∴ 100+36+196+2(a.b+b.c+c.a)=0 ...

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Applications of Dot Product

Let a, b an...

Question

Let $\to a, \to b$ and $\to c$ be three vectors such that $\to a + \to b + \to c = \to 0$ , and $| \to a | = 10, | \to b | = 6$ and $| \to c | = 14$ .

Fund the value of $\to a . \to b + \to b . \to c + \to c . \to a .$

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