Evaluate:
i) `sin48^(@)cos42^(@)+cos48^(@)sin42^(@)`
ii) `cos72^(@)cos12^(@)+sin72^(@)sin12^(@)`
ii) `cos72^(@)cos12^(@)+sin72^(@)sin12^(@)`
iii) `(tan100^(@)+tan35^(@))/(1-tan100^(@)tan35^(@))`
iv) `sinAcos(A-B)-cosAsin(A-B)`

Explanation

Let's solve the given problems step by step.

### i) Evaluate: \( \sin 48^\circ \cos 42^\circ + \cos 48^\circ \sin 42^\circ \)

Using the sine addition formula:
\[ \sin A \cos B + \cos A \sin B = \sin(A + B) \]
...