InterviewSolution
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InterviewSolution
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If `theta`is the angle between two vectors ` vec a a n d vec b , t h e n vec adot vec bgeq0`only when`0A. `0lt theta lt (pi)/(2)`B. `0 le theta le (pi)/(2)`C. `0 lt theta lt pi`D. `0 le theta le pi` |
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Answer» Correct Answer - B It is given that, `vec(a) . vec(b) ge 0` We know that, `vec(a). vec(b) = |vec(a)||vec(b)|cos theta ge 0` `implies cos theta ge 0 implies 0letheta le (pi)/(2)` |
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