2007-06-07 15:18:06 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
ok that flew over my head
2007-06-07 15:20:36 · update #1
You could realize that cos(x) = ∑(n)[0,∞] (-1)^n * x^(2n) / (2n)!
And then it all makes sense from there.
2007-06-07 15:42:49 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Its simple SOH-CAH-TOA..
The Indian Right Triangle Warrior.
SOH : sin theta = opposite / hypotenuse
CAH : cos theta = adjacent / hypotenuse
TOA : tan theta = opposite / adjacent
It is the possibilty to compute all the lengths and all the angles of a right triangle given one (1) angle and two (2) sides.
2007-06-07 15:51:20 · answer #2 · answered by Rey Arson II 3 · 1⤊ 0⤋
My teacher taught me a way to remember the right way to do cosine, sine and tangent:
SOA-CAH-TOA
SOA is sine (because of the S)- the O is for opposite and the A is for adjacent, so it is opposite/adjacent.
CAH is consine (because of the cosine)- the A is for adjacent and the H is for hypotenuse, so it is adjacent over hypotenuse.
TOA is tangent (because of the T)- the O is for opposite and the A is for adjacent, so it is opposite over adjacent.
I hope this answers what you were asking! Good luck!
2007-06-07 15:24:27 · answer #3 · answered by bookworm113 2 · 0⤊ 0⤋
my teacher tought me SOH-CAH-TOA
so o for opposite, a for adjacent, and h for hypotenuse, then s for sin, c for cos, and t for tan
she told us a phrase to help us remember.
Some Old Hag Caught A Hippie Tripping On Acid.
pretty easy to remember
good luck
2007-06-07 15:27:51 · answer #4 · answered by <3.!! 2 · 1⤊ 0⤋
hi
2007-06-07 15:20:23 · answer #5 · answered by K 2 · 0⤊ 0⤋
pure rote memorization
2007-06-07 15:19:52 · answer #6 · answered by Anonymous · 0⤊ 0⤋
You just have to remember it âº
Doug
2007-06-07 15:26:51 · answer #7 · answered by doug_donaghue 7 · 0⤊ 0⤋