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Date: 25-7-2021
1509
Date: 15-8-2021
1677
Date: 22-7-2021
1254
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The real projective plane with elliptic metric where the distance between two points and is defined as the radian angle between the projection of the points on the surface of a sphere (which is tangent to the plane at a point ) from the antipode of the tangent point.
REFERENCES:
Coxeter, H. S. M. Introduction to Geometry, 2nd ed. New York: Wiley, p. 94, 1969.
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علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
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أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
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وفد كلية الزراعة في جامعة كربلاء يشيد بمشروع الحزام الأخضر
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