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| 1. |
Let A denote the plane consisting of all poins that are equdistant from the points P (-4,2,1) and Q(2, -4, 3) and B be the plane x - y + cz = 1where c in RIf the angle between the planes A and B is 45^(@) then the product of all possible values of c is |
| Answer» ANSWER :B | |