Hi! my question is: Is sin pi/2= sin 90= 1 the same as sin pi/2=sin 1.57= 0.027. Thank

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`sin(pi/2)=sin(90^0)=1.0`

but

`sin(pi/2)=sin(1.57 rad)!=sin(1.57^0)=0.027`

So you find difference. conversio i rad and degree.

sin pi/2= sin 90= 1 the same as sin pi/2=sin 1.57.

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