See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
10 questions from this quiz
An equation true for all valid values
tanθ=sinθcosθ\tan \theta = \frac{\sin \theta}{\cos \theta}tanθ=cosθsinθ
When cosθ=0\cos \theta = 0cosθ=0
sin2θ+cos2θ=1\sin^2 \theta + \cos^2 \theta = 1sin2θ+cos2θ=1
Pythagorean theorem
cos2θ=1−sin2θ\cos^2 \theta = 1 - \sin^2 \thetacos2θ=1−sin2θ
Convert everything to sine and cosine
sin2θ\sin^2 \thetasin2θ
111
Replace 111 with sin2θ+cos2θ\sin^2 \theta + \cos^2 \thetasin2θ+cos2θ
Select your subjects, and get access to A+ resources today.