Teaching Jharkhand (JSSC) TGT (6 to 8) Mock Test 2023-24 Mathematics Three Dimensional Geometry Angle with Planes
Determine the angle between the two planes 2x + y - 2z = 3 and 3x – 6y – 2z = 9 using vector method?
1
cos–1\((\frac{16}{21})\)
2
cos–1\((\frac{4}{21})\)
3
cos–1\((\frac{4}{7})\)
4
cos–1\((\frac{8}{21})\)