Question about Casio FX-9750GPlus Calculator
Sorry to say it, bu Mathematics is not Mathemagic: you cannot do things with the shaking of a wand.
There are several ways to find one angle in a right triangle when you have the measures of the sides. You must have the triangle drawn in front of you and then decide if you use the sine, the cosine or the tangent. I cannot presume to know what your triangle looks like.
I suggest you look at the definitions of the trigonometric ratios and find out what is given in your problem.
If you use a ratio to find the cosine, you can then use the arcsine function to find the angle.
If you use one particular ratio to find the sine, you can then use the arcsine to find the angle.
If you know two sides a and b and you know the angle (B) opposite side b, you can use the sine formula (sin(A)/a=sin(B)/b) to determine sin(A) then use the arcsine of the result to get angle A.
Do post a comment to this thread with the case you are trying to solve.
Posted on Nov 26, 2010
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Posted on Jan 02, 2017
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