See what we can offer to your school
"SimpleStudy just makes sense...”
Get the best plan for your school
10 questions from this quiz
2sin(θ)cos(θ)2\sin(\theta)\cos(\theta)2sin(θ)cos(θ)
Three
2tan(θ)1−tan2(θ)\frac{2\tan(\theta)}{1 - \tan^2(\theta)}1−tan2(θ)2tan(θ)
2425\frac{24}{25}2524
−119169\frac{-119}{169}169−119
22.5°,112.5°22.5°, 112.5°22.5°,112.5°
1−2sin2(θ)1 - 2\sin^2(\theta)1−2sin2(θ)
From compound angle formulae by setting A=BA = BA=B
To avoid losing solutions where cosx=0\cos x = 0cosx=0
Finding exact values of logarithms
Select your subjects, and get access to A+ resources today.