Let the mirror image of the point (1, 3, a) with respect to the plane r.(2 i - j + k) - b = 0 be (- 3, 5, 2). Then, the value of | a + b | is equal to _ _ _ _ _ _.

Three Dimensional Geometry: JEE Main 2021 Mathematics question

JEE Main 2021 · 18 Mar, Evening shift · Q24

JEE Main 202118 Mar, Evening shiftMathematicsMediumThree Dimensional Geometry249× since 2002

Let the mirror image of the point (1, 3, a) with respect to the plane

\overrightarrow r .\left( {2\widehat i - \widehat j + \widehat k} \right) - b = 0

be (

-

3, 5, 2). Then, the value of | a + b | is equal to ____________.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2021 · 18 Mar, Evening shift · Q24

JEE Main 202118 Mar, Evening shiftMathematicsMediumThree Dimensional Geometry249× since 2002

Let the mirror image of the point (1, 3, a) with respect to the plane

\overrightarrow r .\left( {2\widehat i - \widehat j + \widehat k} \right) - b = 0

be (

-

3, 5, 2). Then, the value of | a + b | is equal to ____________.

Your answerType your answer. Integers and decimals are accepted.