SOLUTION: cos a +sin a/1+tan a =cos a

Algebra -> Trigonometry-basics -> SOLUTION: cos a +sin a/1+tan a =cos a Log On

Algebra: TrigonometrySection

Answers archiveAnswers

Click here to see ALL problems on Trigonometry-basics

Question 939702: cos a +sin a/1+tan a =cos a
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
cos a +sin a/1+tan a =cos a
----
Cross-multiply::
cos(a)+sin(a) = cos(a)(1+tan(a))
----
cos(a)+sin(a) = cos(a)+sin(a)
--------------
Cheers,
Stan H.
--------------