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How do I activate sin-1, cos-1 and tan-1 on the calculator

 Apr 3, 2020
 #1
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Hold shift.

 Apr 3, 2020
 #2
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How do I activate sin-1, cos-1 and tan-1 on the calculator   

 

Go to 2nd function, look for asin, acos, and atan 

 

but not asinh, acosh, atanh, those are hyperbolic functions, you don't need them... yet 

.

 Apr 3, 2020

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