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Consider three planes P _(1) = x-y + z=1 , P_(2) = x + y -z = -1 and P _(3) , x - 3y + 3z =2. LetL_(1), L_(2) and L_(3) be the lines of intersection of the planes P _(2) and P _(3) , P _(3) and P _(1), and P _(2), respectively Statement -1: At least two of the lines L _(1),_(2) and L _(3) are non-parallel . Statement -1: the three planes fo not have a common point |
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Answer» Both the STATEMENT are true, and Statement 2 is the correct explanation for Statement 1 |
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