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a+b+c=0 |a|=3 |b|=5 |c|=7 find the …

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a+b+c=0 |a|=3 |b|=5 |c|=7 find the angel between a & b

    • Posted by Abhishek Chhachhiya 6 years, 7 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Aditya Singh 6 years, 7 months ago

    a+b=-c This means |vector a+vector b|=|c| but direction is oppsite. Solving we get, angle=60°

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