Question: Prove that: If a+b+c 0, the angle between a and b and band e are 150 and 120 respectively. Then magnitude of vectors a, b

Prove that:If a+b+c 0, the angle between a and b and band e

If a+b+c 0, the angle between a and b and band e are 150 and 120 respectively. Then magnitude of vectors a, b and c are in ratio.

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