1
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Direction: Consider the following for the items that follow:
Let 2x2 + 2y2 + 2z2 + 3x + 3y + 3z - 6 = 0 be a sphere.
What is the diameter of the sphere?
2
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Direction: Consider the following for the items that follow:
Let 2x2 + 2y2 + 2z2 + 3x + 3y + 3z - 6 = 0 be a sphere.
The centre of the sphere lies on the plane
3
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Direction: Consider the following for the items that follow:
Let S be the line of intersection of two planes x + y + z = 1 and 2x + 3y - 4z = 8.
Which of the following are the direction ratios of S?
4
NDA Mathematics 1st September 2024
MCQ (Single Correct Answer)
+2.5
-0.833
Direction: Consider the following for the items that follow:
Let S be the line of intersection of two planes x + y + z = 1 and 2x + 3y - 4z = 8.
If 〈l, m, n〉 are direction cosines of S, then what is the value. of 43 (I2 - m2 - n2)?
Questions Asked from Three Dimensional Geometry (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
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Trigonometric Angles and Equations Inverse Trigonometric Function Height and Distance Properties of Triangles
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