Help with Simplifying Trigonometric Expressions
Please try the following on your own. If you need help in solving them please refer to
the associated video link to its right. To save you time, I am also providing you with
the appropriate time interval.
1−sin2 𝑥𝑥
Video 1: https://www.youtube.com/watch?v=qTIsF61_BYg Time (0:00 – 5:00)
sec 𝑥𝑥+csc 𝑥𝑥
Video 1, but go to (5:00 – 11:00)
sec 𝑥𝑥−cos 𝑥𝑥
https://www.youtube.com/watch?v=Cx5PGdgOBLc
csc2 𝑥𝑥−1
1+tan 𝑥𝑥
tan 𝑥𝑥
1+sin 𝑥𝑥
cos 𝑥𝑥
+
cos 𝑥𝑥
1+sin 𝑥𝑥
https://www.youtube.com/watch?v=203K9a3puvY
1+sin 𝑥𝑥
https://www.youtube.com/watch?v=Vx8rkQ81i6Q
cos 𝑥𝑥 tan 𝑥𝑥
https://www.youtube.com/watch?v=mxdltBGRdOE (0:00 – 2:38)
cos2 𝑥𝑥
1−𝑠𝑠𝑠𝑠𝑠𝑠2 𝑥𝑥
same as above (2:38 – 4:35)
sin2 𝑥𝑥+tan2 𝑥𝑥+cos2 𝑥𝑥
same as above (5:09 – 12:00)
cos 𝑥𝑥
sec 𝑥𝑥