Question

sin 30 degree + cos 45 degree=
(Simplify answer, type answer, using radicals as needed. Rationalize all denominators. Use integers of fractions for any numbers in the expression)

Answer 1

sin (30) = 0.5
cos (45) = \[\frac{ 1 }{ \sqrt{2} } = \frac{ \sqrt{2} }{ 2 }\]

These are things you'll just need to memorize. Cos (30) as well. Sqrt of 3 over 2

Answer 2

you need to memorize the unit circle

Answer 3

Is the result to this -0.4627 degree