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Please solve the questions number is 21. Hurry up now.

shivam Prajapati , 8 Years ago
Grade 12th pass
anser 1 Answers
Khimraj
|a| =10, |b| = 2
a.b = 12
|a||b|cos\Theta = 12
cos\Theta = 12/20 = 3/5
So sin\Theta = (1 – cos\Theta)1/2 = 4/5
Then |axb| = |a||b|sin\Theta = (10)(2)(4/5) = 16.
Hope it clears. If you liike answer then please approve it.
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Last Activity: 8 Years ago
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