2007-08-13 13:41:07 · 5 answers · asked by rachel 1 in Science & Mathematics ➔ Mathematics
Find the point where cosx=sinx, when x=45degrees
To show:
cosx=sinx;
tanx = 1
x =45degrees
2007-08-13 13:47:25 · answer #1 · answered by supastremph 6 · 2⤊ 0⤋
It is impossible, as the graphs of sinx and cosx intersect an infinite number of times in the first quadrant.
2007-08-13 20:52:42 · answer #2 · answered by Anonymous · 0⤊ 2⤋
If you have a cosx in your sinx quadrant you might need some Preparation H
2007-08-13 20:47:05 · answer #3 · answered by Anonymous · 0⤊ 2⤋
sin x and cos x intersect in the 1st quadrant when
x = pi/4 +/- 2n pi, where n= any positive or negative integer, including 0.
2007-08-13 20:54:31 · answer #4 · answered by ironduke8159 7 · 0⤊ 2⤋
y=cosx,y=sinx
sinx=cosx
tanx=1
x=45degrees
y=1/sqrt(2).ANS
2007-08-13 21:01:08 · answer #5 · answered by Anonymous · 1⤊ 0⤋