JEE Main 2021 Mathematics question
Let the mirror image of the point (1, 3, a) with respect to the plane be (–3, 5, 2). Then the value of |a + b| is equal to .
Answer: 1
Let the mirror image of the point (1, 3, a) with respect to the plane be (–3, 5, 2). Then the value of |a + b| is equal to .