2007-04-04 02:52:02 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3cos(x)
Please give me best answer thanks!
2007-04-04 05:51:02 · answer #1 · answered by Anonymous · 0⤊ 0⤋
In the future, for problems like this :
Let [cos x] = Y
what is 2Y + Y ..... its 3Y
so 2cos x + cos x = 3 cos x.
(since you're just beginning you Trig studies, note that 2 cos x is not equal to cos 2x)
2007-04-04 10:14:05 · answer #2 · answered by davidosterberg1 6 · 0⤊ 0⤋
so simple..3 cos(x)
2007-04-04 09:56:54 · answer #3 · answered by x 2 · 0⤊ 0⤋
3cos(x). What's the trouble?
2007-04-04 10:03:00 · answer #4 · answered by Steiner 7 · 0⤊ 0⤋
3cos(x)
2007-04-04 09:58:18 · answer #5 · answered by Ir Jamie 2 · 0⤊ 0⤋
3cos(x).
2007-04-04 09:55:40 · answer #6 · answered by Anonymous · 0⤊ 0⤋
3cosx?????
2007-04-04 10:01:37 · answer #7 · answered by jo_danfan 1 · 0⤊ 0⤋