2x – 2y + 4z + 5 = 0 and 3x – 3y + 6z – 1 = 0

NCERT Class XII Mathematics Chapter - - Solutions

Question 49 - 54: In the following cases, determine whether the given planes are parallel or perpendicular, and in case they are neither, find the angles between them.

Question : 52 of 78

Marks: +1, -0

Solution:

The given planes are 2x – 2y + 4z + 5 = 0 and 3x – 3y + 6z – 1 = 0

Since,

\frac{2}{3}=\frac{-2}{-3}=\frac{4}{6}

∴ The planes are parallel.

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