I need the answer immediately!!!!
2006-12-28 05:32:24 · 8 answers · asked by HN 3 in Science & Mathematics ➔ Mathematics
I dont need the exact number, i've the calculator. i need it appears like x√x.
2006-12-28 05:39:39 · update #1
I dont need the exact number, i've the calculator. i need it appears like x√y.
2006-12-28 05:39:50 · update #2
http://staff.jccc.edu/swilson/trig/trig15degrees.htm
2006-12-28 05:35:11 · answer #1 · answered by binibining pilipina 5 · 0⤊ 0⤋
Then plug it in your calculator. That way you get 0.258819045.
Or if you need an EXACT answer, use the half angle formula.
sin 15
= sin 30/2
= â((1 - cos 30) / 2)
= â(1 - â3/2)/2
= â((2 - â3)/2/2
= 1/2â(2 - â3)
2006-12-28 13:34:45 · answer #2 · answered by Jim Burnell 6 · 3⤊ 0⤋
There should have been trig tables in the back of the textbook you left at school. Sin is opposite over hypoteneuse so what are the polar coordinates of a radius circumference intersect for a 15 degree angle?
2006-12-28 13:39:12 · answer #3 · answered by St N 7 · 0⤊ 0⤋
Sin15 is approximately 0.258819. (rounded down to the nearest millionth)
2006-12-28 14:04:15 · answer #4 · answered by gooeyjim 2 · 0⤊ 0⤋
sin 15°
15 (Ï / 180) =
Ï / 12
- - - - - - - -
sin Ï / 12 =
sin Ï 4 x cos Ï / 6 - cos Ï / 4 x sin Ï / 6 =
â2/2 x â3/2 - â2/2 x 1/2 =
â6/4 - â2/4
- - - - - - - -s-
2006-12-28 15:26:40 · answer #5 · answered by SAMUEL D 7 · 0⤊ 0⤋
sin 15=sin 30/2=sin +/-â((1-cos 30)/2)
sin 15=â((1-â3 /2))/2
2006-12-28 13:52:49 · answer #6 · answered by yupchagee 7 · 0⤊ 0⤋
0.258819045
2006-12-28 13:35:35 · answer #7 · answered by candycane 2 · 0⤊ 0⤋
.258819
2006-12-28 13:35:17 · answer #8 · answered by Mr. Jack 3 · 0⤊ 0⤋