Math, asked by sukanyareddy6776, 1 month ago

a3+a2b+a2c-abc answer to this question

Answers

Answered by nishanikumari23

40

Step-by-step explanation:

if vectors l P l , l Q l and l R l have magnitudo 5, 12, 13 units and l P l+l Q l= l R l, the angle between l Q l and l R l is

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