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# How do you get the -1 in sin cos and tan?

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how do you get the -1 in sin cos and tan?
I'm trying to find the angle of a right triangle using the hypotenuse and opposite.
I'm looking at tutorials and stuff cause they help me understand more than school and it's telling me to do Sin(^-1) x 0.5 =30 And I'm trying it out to see if i can and I'm getting completely different answers on my calculator.

Guest Apr 18, 2017
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#1
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It depends on what calculator you're using. Some have a ^ button but the calculator itself is not programmed for doing inverse trig functions. Check your calculator

Guest Apr 18, 2017
#2
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On the calculator here, press "2nd" key first. You should see "asin", "acos" and "atan". These are the inverse functions of: sin, cos and tan.

Guest Apr 18, 2017
#3
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Make sure you check if the calculator is in "radians" or "degrees" Inverse functions i think are in degrees.

Veteran Apr 18, 2017
#4
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Thank you!!

Guest Apr 18, 2017

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