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← Bihar Board Class 12 PYQ
Three Dimensional Geometry
Bihar Board Class 12 · Mathematics · 89 past questions
Topic
Angle and relative position of planes, and of line with plane
2
Direction cosines and direction ratios
1
Equation of a plane
1
Angle between lines and conditions for parallel or perpendicular lines
0
Distance related to planes
0
Points, distance and coordinates
0
Straight line equations
0
Level
Easy
4
Moderate
1
Tough
0
Year
2026
0
2025
1
2024
0
2023
0
2021
0
2019
0
2018
0
2017
0
2016
0
2015
0
1 of 89 ·
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Q18
2025
The direction cosines of the unit vector perpendicular to the plane…
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