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Lines whose equation are `(x-3)/2=(y-2)/3=(z-1)/(lamda)` and `(x-2)/3=(y-3)/2=(z-2)/3` lie in same plane, then. The value of `sin^(-1)sinlamda` is equal toA. `3`B. `pi-3`C. `4`D. `pi-4` |
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Answer» Correct Answer - D Line are in same plane to `|(1, -1, -1),(2, 3, lamda),(3, 2, 3)|=0implies1(9-2lamda)+1(-3lamda)-1(-5)=0` `20-5lamda=0implieslamda=4` So `sin^(-1)sin4=sin^(-1)sin(pi-4)=pi-4` |
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