Online Test Banks
Score higher
See Online Test Banks
eLearning
Learning anything is easy
Browse Online Courses
Mobile Apps
Learning on the go
Explore Mobile Apps
Dummies Store
Shop for books and more
Start Shopping

Trigonometry Formulas You Must Know for the ACT

Some of the questions on the ACT Math test deal with trigonometry problems. Below are some of the most useful formulas for trig ratios, radians, and identities.

  • Six trig ratios:

    image0.png
  • Formula for radians:

    image1.png
  • Five trig identities:

    image2.png
  • Add a Comment
  • Print
  • Share
blog comments powered by Disqus
Advertisement

Inside Dummies.com

Dummies.com Sweepstakes

Win $500. Easy.