arc tan undefined

arc sin 1/2

cos (to the power of -1) - square root of 3 over 2

cos(arc tan 5/13)

Can anyone guide me through these?

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- January 26th 2009, 12:44 PMj0nath0n3find value of inverse trig ratios
arc tan undefined

arc sin 1/2

cos (to the power of -1) - square root of 3 over 2

cos(arc tan 5/13)

Can anyone guide me through these? - January 26th 2009, 01:04 PManywho
arc tan undefined -

**Where is tangent undefined? That will be your answer. Tangent is undefined at**

The other problems can be done by basically working backwards or plugging them into your calculator. If that does not help then I can do a couple more or someone else can.