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he angle between two vectors a and bis 2pi/3 and modulus a=1,modulus b=2 Evaluate Mod a cross3b

karthika , 10 Years ago
Grade 12
anser 1 Answers
BALAJI ANDALAMALA
|a\times 3b|=3|a||b|sin\theta
=3\times2\times sin120
=3\times2\times\frac{\sqrt{3}}{2} = 3\sqrt{3}
Last Activity: 10 Years ago
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