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Let a,b∈R. If the mirror image of the point P(a,6,9) with respect to the line x−37=y−25=z−1−9 is (20,b,−a−9), then |a+b| is equal to |
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Answer» Let a,b∈R. If the mirror image of the point P(a,6,9) with respect to the line x−37=y−25=z−1−9 is (20,b,−a−9), then |a+b| is equal to |
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