Monday

December 22, 2014

December 22, 2014

Posted by **Anonymous** on Wednesday, January 23, 2013 at 9:53am.

a cos { ( alpha + beta)/2}.

- maths -
**Steve**, Wednesday, January 23, 2013 at 10:33amboth points are on a circle of radius a.

The distance to the line is the altitude of the triangle formed by the two points and the circle center.

Draw the diagram and see the answer checks.

**Answer this Question**

**Related Questions**

trig - express 20sin theta + 4 cos theta as R sin(theta + alpha) R sin(theta + ...

Trigonometry - Write cos(-83degrees) as a function of a positive angle Prove ...

trig - FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6...

Trigonometry - Prove that tan^2(alpha)-1+cos^2(alpha)sin^2(alpha) Please Explain

Maths - prove that the equation of straight line which passes through the point...

trig - Find sin (alpha/2) and cos (alpha/2) sin alpha = 3, -pi/2 < alpha <...

Trig - assume A= alpha using complementary rule how do I solve for alpha? cos(2A...

calculus - Interference Two identical tuning forks are struck, one a fraction of...

trig - evaluate the following in exact form, where the angeles alpha and beta ...

trig - in the diagram below.A,B and C are three points in the same horizontal ...