Sin and Cos of Corresponding angles
2007-05-29 18:47:23 · 5 answers · asked by Ali 1 in Science & Mathematics ➔ Mathematics
sin(90-theta)=cos(theta)
cos(90-theta)=sin(theta)
same for radians just put pi in where 90 degrees is.
2007-05-29 18:51:39 · answer #1 · answered by Michael M 4 · 0⤊ 0⤋
sin^2 Angle A + cos^2 Angle A = 1
2007-05-30 01:51:16 · answer #2 · answered by heathenboilermaker 1 · 0⤊ 0⤋
If you have a right triangle of sides a, b and c....
And you're given...
sin x = b/c
and you are asked for cos x....and you only know the length of b and c... Use pythagorean theorem coupled with RTT(Right Triangle Trigonometry) to find the cos x
So...
a = Sqrt(c^2 - b^2)
Therefore
cos x = Sqrt(c^2 - b^2)/c = a/c
Done.
2007-05-30 01:51:46 · answer #3 · answered by Anonymous · 0⤊ 0⤋
What do you want to know about the sine and cosine of corresponding angles? You didn't ask a question.
2007-05-30 01:51:08 · answer #4 · answered by Jane D 1 · 0⤊ 0⤋
???
Could you be a bit more vague?
Doug
2007-05-30 01:51:46 · answer #5 · answered by doug_donaghue 7 · 0⤊ 0⤋