Consider the trigonometric expression `sin (2A)/(1-cos 2A) and sin(2A)/(1+cos 2A)`.(ii)Evaluate `tan 22^@30' and cot 22^@30'`.

Consider the trigonometric expression sin(2A)/(1-cos 2A) amd sin(2A)/(1+cos 2A) .(iii)Prove that (1-cos theta)/sin theta=tan (theta/2)=(sin theta)/(1+cos theta) .

Consider the trigonometric expression sin (2A)/(1-cos 2A) and sin(2A)/(1+cos 2A) . Of the above expressions which one is tan A and which one is cot A?

Find the integral (cos x-sin x)/(1+sin 2 x)

Prove that (1+sin2A-cos2A)/(1+sin2A+cos2A)=tanA .

Consider the trignometric equation 4cos^2theta+6sin^2theta=5 prove that cos^2theta=1/2

Find the integral sin ^2 x/(1+cos x)

Find the integral (cos 2 x)/(cos x+sin x)^2

Consider I=int(sinxcosx)/(a^2sin^2x+b^2cos^2x)dx Evaluate I .

Find sin(x/2) , cos(x/2) and tan(x/2) if cosx=(-1/3) and x lies in the 3rd quadrant .

Prove that (sin x-sin y)/(cos x+cos y)=tan ((x-y)/2) .