Three Dimensional Geometry

Bihar Board Class 12 · Mathematics · 89 past questions

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1. Q13 20252024 Set J2024 Set D2019 Set F2017

   The direction cosines of z-axis are-

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2. Q16 2025

   If a line makes angle $30^0, 60^0$ and $90^0$ with the positive direction of $x, y$ and $z$-axis…

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3. Q18 2025

   The direction cosines of the unit vector perpendicular to the plane…

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4. Q19 2025

   If direction ratios of a straight line are 2, −3, 5 then its direction cosines are

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5. Q30 2025 Set A2025 Set E

   The direction ratios of the straight line $\frac{x-19}{13}=\frac{y-17}{11}=\frac{z-15}{9}$ are

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