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what model do you have?
OK I was looking at the manual (I assume you have a copy) what do you get if you press tan 45 enter?
that means you are in degree mode and you found the tangent of 45 degrees is 1 try sin 30 enter (you should get 0.5)
now to find the inverse sin of 0.5 clear it, and press sin sin (the sin button twice in a row) then 0.5 enter
oops, that is not what I expected. you did sin(sin(0.5))) I wanted to see sin^-1(0.5)
you do not really need a calculator for this. You need to remember the definition of cosine Did you learn soh cah toa it stands for sin opposite over hypotenuse, cos adjacent over hypotenuse, tan opp/adj
Does this make sense?
it does, I don't want to sound stupid but is line A the angle going up
You drew a triangle and labeled the vertexes (angles) A,B,C My A is just the label for the angle in the bottom right
To do cos A you need to know which side is the opposite side. The line with the arrow points to the opposite side. The other side is the adjacent side. The hypotenuse is always opposite the 90 deg angle.
so do you consider A to be 25 or 24
The legs of the triangle would be AB or AC By A, I mean the measure of the angle formed by legs AB and AC
the cos(A) = length adjacent side over length of hypotenuse
okay, I think I got it. Thanks so much for explaing it in detail to me.
so cos(A)= 24/25 if you can figure out the calculator A= cos^-1(24/25) = 16.26 degrees (approximately)
you are aweome, I really appreciate your help. I have MS and it has affected my memory and I am not retaining alot of informatin that I am learning..so thanks again! :)