SIN, COS and TAN Formulas

To use the SIN, COS and TAN to convert degree angles you also have to wrap the degree angle with the RADIANS formula. The SIN, COS and TAN formulas can only read RADIANS not Degrees. Examples are as follows:
=SIN(RADIANS(90))
=COS(RADIANS(9))
=TAN(RADIANS(9))