Asked by | 22nd Jan, 2009, 10:38: PM
Take CA along the x axis, with C as the origin.
A has coordinates (b,0)
Use trigonometry to get the coordinates of B as (acosC, asinC).
Use the figure given below and the proof given earlier and that will solve your doubt.
Answered by | 22nd Jan, 2009, 11:58: PM
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