Kitsune123: If cosA= 3/5, find tanA (as a fraction)
[input]tan(acos(3/5))[/input]
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Kitsune123: If secA= 25/7, find sinA (as a fraction)
sec(A)=1/cos(A)
1/cos(A)=25/7
1=25/7*cos(A)
1/(25/7)=cos(A)
7/25=cos(A)
A=acos(7/25)
[input]sin( acos(7/25) )[/input]
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Kitsune123: Change 7pi/4
[input]7pi/4 * 180/pi[/input]
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Kitsune123: Find sin pi/2
in rad:
[inputrad]sin( pi/2 )[/inputrad]
in deg:
[input]sin( pi/2 )[/input]
+3146 
