prove sin(b+2c)+sin(c+2a)+sin(a+2b)=4sinb-c/2.sin c-a/2. sina-b/2?

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prove sin(b+2c)+sin(c+2a)+sin(a+2b)=4sinb-c/2.sin c-a/2. sina-b/2?

2007-01-21 02:29:09 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3 answers

dear student: please write the correct expression if you want to have a prayer for any meaningful help.

Good luck and please pay more attention to detail...in Math (as in other technical disciplines), precision is key to understanding.

2007-01-21 02:57:55 · answer #1 · answered by alrivera_1 4 · 0⤊ 0⤋

The Sequence doesnot seem meaningful... I would expect some symmetry in the problem!! Can you please recheck the expression!!

2007-01-22 12:11:00 · answer #2 · answered by uban1981 2 · 0⤊ 0⤋

Read your question and see if it can be answered...

2007-01-21 10:32:13 · answer #3 · answered by gianlino 7 · 0⤊ 0⤋