How do I find the value of tan(180) - 2cos(180) + 3csc(270) + sin 90?
1 Answer
Sep 18, 2015
-4
Explanation:
Plug in the following values
tan 180 =0
cos 180= -1
csc 270= csc (360-90)= csc -90 =-csc 90 =-1
sin 90= 1
This would make 0-2-3+1= -4
