some questions, thanks.
An equilateral triangle is inscribed in a circle. Find the ratio of the triangle's height to the circle's circumference. ANS: [unparseable or potentially dangerous latex formula]
Find the imaginary part of [unparseable or potentially dangerous latex formula]. ANS:[unparseable or potentially dangerous latex formula]
If the coefficient of [unparseable or potentially dangerous latex formula] term is twice the coefficient of the [unparseable or potentially dangerous latex formula] term in tsomhe simplified expansion of [unparseable or potentially dangerous latex formula], find the non-zero value of a. ANS: [unparseable or potentially dangerous latex formula]
If [unparseable or potentially dangerous latex formula] and[unparseable or potentially dangerous latex formula], then [unparseable or potentially dangerous latex formula] equals: ANS: 0.5
Find the remainder when the difference [unparseable or potentially dangerous latex formula] is divided by 10. ANS: 3
To the nearest sq. unit, find the area of a regular nonagon if each of its longest diagonals has a length of 9 units. ANS. 60
Mod edit: I think I fixed the scripting of the second to last problem...