A. | parabola |
B. | hyperbola |
C. | ellipse |
D. | remains a circle |
Option: C Explanation :
Let it be scaled in Y-axis with a factor k.
The equation of the circle x2 + y2 = a2, after scaling
becomes x2 + (ky)2 = a2. This can be written as x2/a2 + y2/(a/k)2 = 1. This is an ellipse.
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A. |
it is always possible to draw a circle.passing through the three points.
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B. |
it may or may not be-possible to draw a circie passing through the three points.
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C. |
it is impossible to draw a circle passing through the three points
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D. | none of the above |
Option: A Explanation :
The three given points form a triangle. This triangle will have a circum-circle that touches all the three points
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A. |
vertical to horizontal points
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B. |
horizontal to vertical points
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C. |
vertical to (horizontal + vertical) points
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D. | either (a) or (b), depending on the convention followed |
Option: D Explanation : Click on Discuss to view users comments. |