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What will be the angle b/w …

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What will be the angle b/w a and b vectors if there is a set of three vectors a, b, c such that vectors a+b+c =0and magnitude of vectors a=3,b=5,c=7

    • Posted by Ishu Kharb 7 years, 10 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Seema Goel 7 years, 10 months ago

    a+b=-c Squaring then putting values 9+25+2a.b=49 a.b=15/2 Now apply the formula Angle= 60

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