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On a right-angled triangle, let one of the angles that is not the right angle be x. 'Sine x' is the length of the side opposite (not touching) x divided by the hypotenuse (longest side or the side that is opposite/not touching the right angle). This gives you the ratio or relationship between these two sides.
Sine-1 is the opposite; if you know the two sides (hypotenuse and opposite side) related to x, sine-1 of the opposite side divided by the hypotenuse will give you the size of angle x.
If this confuses you, sorry but it would have been much easier with a diagram. Wait until you learn trigonometry. There's only so much I can do using text.
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How do you use a calculator for the law of sines say you have SinB.96 how to you get B?
well in order to get sine b you will have to got to your calculator and reverse the equation ... in other words on the calculator you will see sin-1 you will hit that and in the parenthesis you put .96 .so it should look like this sin-1(.96) and you qet your answer .!
When do you use law of sine?
There are several cases when you would want to use the law of sines. When you have angle angle side, angle side angle, or angle side side you would use the law of sines.
Does acoustics use trigonometry?
Yes, because all sound waves can be modelled as sine (or cosine) waves, or combinations of sine waves.
When can you use the inverse of sin?
You can use the inverse of sin when you want to solve an equation where x is the angle you're trying to find. Say sin(x)=32/50 Since you can't plug "x" into your calculator, use the arc sin (represented on your calculator by sin -1) on both sides to get rid of the sin. This is how it would plug into your calculator: sin-1 (32/50) Whatever the answer is would be what "x" equals.
How do you use the Pythagoras theorem in circle?
In a circle that has a radius of one you use Pythagorean theorem to derive the sine, cosine and tangent formulas. Draw a circle around the origin on graph paper. The sine is the line segment from the point where the side of the angle intersects down to the x-axis. etc.
