Friday
April 18, 2014

Homework Help: maths

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

prove that the length of the perpendicular from the origin to the straight line joining the two points having coordinates ( a cos alpha, a sin alpha) and (a cos beta, a sin beta) is
a cos { ( alpha + beta)/2}.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

maths-circles - ABCD is a rectangle the line through C perpendicular to AC meets...
geometry (maths) - ABCD is a rectangle, in which BC=2AB. A point E lies on ray ...
MATHS - AX is the bisector of <BAC p is any point on AX. prove that the ...
Maths - AX is the bisector of <BAC p is any point on AX. prove that the ...
maths - the points A(2,3) B(4,-1) C(-1,2) are the vertices of a triangle. find ...
maths - In triangle ABC angle B > angle C if AM is the bisector of angle BAC...
maths-triangles - In DABC,∠Q >∠R, PA is the bisector of ∠ ...
Straight Lines - From a given point (h,k) perpendiculars are drawn to the axis ...
Physics - A metal rod of length (L) moves with velocity (v), perpendicular to ...
maths - perpendicular avenue is perpendicular to tangent street and passes ...

Search
Members