Hello,(adsbygoogle = window.adsbygoogle || []).push({});

I'm having some problems. So for geometry class today, the teacher taught us this COS, SIN, TAN stuff. I got the concept how to get the fractions from the triangle and everything. Problem is how to plug it in the calculator. I have a basic TI-30XA, and I'm trying to plug in fractions for the SIN, COS, and TAN, but I have no clue how to plug it in easily. For example the fraction : 16 over 34. How do I get the SIN of it?

Its really urgent someone replies back. I have been trying all night, and I have a chemistry test tomorrow, so I can't spend all my time working on geometry just to plug in something in the calculator.

Thanks,

ArcherofScience

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# SIN, COS, TAN help?

**Physics Forums | Science Articles, Homework Help, Discussion**