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If a is perpendicular to b and c, |a|=2, |b|=3, |c|=4 and the angle between b and c is (2pi)/3, then [(a, b, c)] is equal to |
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Answer» `4sqrt(3)` ` =|b||c| sin(2pi)/(3)A(.HATN)` `=|b||c|sin""(2pi)/3|a||hatn|cos60^@` `=|a||b||c|(sin(2pi)/3)` `2xx3xx4xxsqrt3/2=12sqrt3` |
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