Wednesday

November 26, 2014

November 26, 2014

Posted by **Jack** on Tuesday, January 11, 2011 at 2:43pm.

- math -
**Henry**, Wednesday, January 12, 2011 at 9:45pm(0.588, 0.809).

cos(theta) = 0.588,

theta = 53.98 deg.

2theta = 2 * 53.98 = 107.98 deg.

cos107.98 = -0.309,

sin107.98 = 0.951.

(-0.309, 0.951).

**Answer this Question**

**Related Questions**

Math (Calculus) - Given any Cartesian coordinates, (x,y), there are polar ...

math - Triangle ABC below is reflected across the y-axis and then translated 1 ...

Trigonometry - Point P is located at the intersection of the unit circle and the...

Math - sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),...

Calculus - Find the area under one arch of a cycloid describe by the parametric ...

Math - A circle C has center at the origin and radius 9. Another circle K has a...

Math - 1)Find cos theta if sin theta=3/5 and 90 degrees<theta<180 degrees...

maths - the circle is given by the equation x^2+y^2+8x-7/2y=0 find (i)...

Precal - The point (r,theta) in polar coordinates is (7,5) in rectangular ...

Coordinates in 3-D, Polar Coordinates, Precalculus - Let a and b be real numbers...