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Maths Puzzle
Numerical Ability
write the equation of the ellipse.
sum of focal radii is 14. foci at (0, square root of 13) and (0, - square rot of 13).
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book Other Question
An equalateral triangle and a circle have the same center. The area of triangle not in the circle = the area of the circle not in the triangle. If the radius of the circle is 1 find the length of the side of the triangle.
Express as a single logarithm and simplify:
logx+logy-logz-logw
how do I do this one?