· cos 2 theta/(1tan theta)sin 3 theta/(sin theta cos theta)=1sin theta cos theta Maths Introduction to TrigonometryIf 1sin^2 theta=3 sin theta cos theta then prove that tan theta=1 or 1/22 tan theta /(1 tan^2 theta) = sin 2theta Hi Charmaine, In a problem like this when I don't immediately see something useful I write everything in terms of sines and cosines and then see if I can manipulate both sides to make them equal In this case replace tan(θ) by sin(θ) /cos(θ) and sin(2 θ) by 2 sin(θ) cos(θ) Penny Math Central is supported by the University of Regina and
If Tan 2theta 1 2tan 2a Then Prove That 2sin 2theta 1 Sin 2a Mathematics Topperlearning Com 47
