Three Dimensional Geometry

Bihar Board Class 12 · Mathematics · 89 past questions

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1. Q5 2026 Set A2026 Set H2026 Set E2026 Set C2026 Set F2026 Set D2026 Set J2026 Set B

   If the direction cosines of two straight lines are $l_1, m_1, n_1$ and $l_2, m_2, n_2$ then the cosine of the…

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2. Q8 2026 Set A2026 Set H2026 Set E2026 Set C2026 Set F2026 Set D2026 Set J2026 Set B

   Find the value of $p$ so that the straight lines $\frac{x-1}{-1} = \frac{y+3}{p} = \frac{z-7}{2}$ and…

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3. Q10 2026 Set A2026 Set H2026 Set E2026 Set C2026 Set F2026 Set J2026 Set D

   The angle between the straight lines $\frac{x-2}{2}=\frac{y-1}{7}=\frac{z+3}{-3}$ and…

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4. Q11 2026 Set B

   The angle between the straight lines $\frac{x-2}{2}=\frac{y-1}{7}=\frac{z+3}{-3}$ and…

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