Evaluate for `theta`
`( Sintheta + Costheta ) / ( Sintheta - Costheta ) = 3/2`

Sintheta + Costheta = 2 Sintheta - Costheta = ?

If Sintheta + Costheta = 1 Sintheta - Costheta = ?

Evaluate : ( Sintheta - Costheta )^2 + ( Sintheta + Costheta )^2 = ?

Evaluate : ( sintheta + costheta ) ( sintheta - costheta )

Evaluate : ( Sin^3theta + Cos^3theta )/ ( Sintheta + Costheta )

Evaluate : ( ( Sin^3theta + Cos^3theta ) / ( Sintheta + Costheta ) ) + Sintheta Costheta =

Evaluate : a Sin^3theta Costheta + a Sintheta Cos^3theta

Evaluate : ( Sintheta + Costheta ) ( 1 - Sintheta Costheta ) = Sin^3theta + Cos^3theta

Evaluate : ( Cos^3theta + Sin^3theta ) / ( Costheta + Sintheta ) + ( Cos^3theta - Sin^3theta ) / ( Costheta - Sintheta )

Evaluate : 1/costheta + sintheta/costheta = ?