what does sin2x/cos2x equal to?

Sin2x/1-Cos2x

Simplify: Sin2x/1-Cos2x

d2y/dx2+9y=cos2x+sin2x

Prove that sin2x+cos2x-1/sin2x+cos2x+1=tanx

sin2x − cos2x − tan2x = 2sin2x − 2sin4x − 1/...

if a=cos2x + sin2x and b=cos2y + isin2y.then find (a + b)

Solve that cos2x +sin2x=1 using a right angles A

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