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Find the acute angle 0, to the nearest hundreth of a degree, for sin 0 = 0.8565
a). 58.93 degrees
b).148.92 degrees
c). -58.93 degrees
d).40. 58 degrees
2007-04-28 09:03:08 · 5 answers · asked by cyberlove 1 in Science & Mathematics ➔ Mathematics
the angle is 58.93 degrees
use a caculator? enter the .8585 into the keypad, hit the function key and arcsin...
use a table, read the .8565 and read the angle
Remember that sin 0 degrees is 0, and sin 90 is 1.000, sin 30 is .500, sin 45 is sqrt of 2 /2 (or .707), sin 60 sqrt 3 / 2 (or .866). If you do enough of these problems, these relations for sin cos and tan will become part of you.
Just a first brush of help. I hope it doesn't overwhelm you.
2007-04-28 09:12:43 · answer #1 · answered by Durai 3 · 0⤊ 0⤋
Looking at the figures, as the angle is acute it must be between 0 and 90 and as the value > .7071 (45 degrees) the only answer that fits is a.
You should learn
Sin(0) = 0
Sin(30) = 1/2
Sin(45) = .7 (approx) - actual value = sqr(2)/2
sin(60) = .87 (approx)-actual value = sqr(3)/2
sin(90) = 1
2007-04-28 09:09:35 · answer #2 · answered by welcome news 6 · 1⤊ 0⤋
1. Launch your Windoze calculator.
2. Click on 'view' and then click 'Scientific'.
3. Click on 'degrees'.
4. Enter .8565 from your keyboard
5. Click 'inv'.
6. Click the 'sin' button.
7. Read the answer (58.925)
HTH
Doug
2007-04-28 09:12:02 · answer #3 · answered by doug_donaghue 7 · 0⤊ 0⤋
I am taking x as the angle.
since sin(x) = 0.8565 which is closer to sin(60) in terms of value.
sin (90degree) = 1
sin(30 degree) = 0.5
sin(45 degree) = 0.7
sin(60 degree) = 0.86
Hence, the answer is option A.
sin
2007-04-28 09:16:19 · answer #4 · answered by ankit41 3 · 0⤊ 0⤋
It's closest to (a).
2007-04-28 09:08:49 · answer #5 · answered by cattbarf 7 · 0⤊ 0⤋