math
Prove the identity cos theta - sin theta / cos theta + sin theta = sec 2 theta - tan 2 theta.
statistics
The new mean is 75 (25 + 50); however the standard deviation stays at 5 because she adds the same amount of points to all grades, so the curve is just shifting up rather than changing shapes.
Math - Trig
For the equation 4 cos theta - square root 12 = 0, where 0 < theta < (or equal to) 2 pi, determine the measure of theta. The answers to choose from are: A) pi/ 3, 5 pi/ 3 B) 2 pi/ 3, 4 pi/ 3 C) 5 pi/ 6, 7 pi/ 6 D) pi/ 6, 11 pi/ 6 Please explain and show work, because I d...
calculus
Find the area of the region bounded by the graph of the equation 2y^2=x+4 and x=y^2
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