What is expand (sin(piz^2)+cos(piz^2))/((z-1)(z-2)) ?

The solution to expand (sin(piz^2)+cos(piz^2))/((z-1)(z-2)) is (sin(piz^2)+cos(piz^2))/(z^2-3z+2)

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expand (sin(piz^2)+cos(piz^2))/((z-1)(z-2))

expand

\frac{sin ( π z ^{2} ) + cos ( π z ^{2} )}{( z - 1 ) ( z - 2 )}

\frac{sin ( π z ^{2} ) + cos ( π z ^{2} )}{z ^{2} - 3 z + 2}

Solution steps

\frac{sin ( π z ^{2} ) + cos ( π z ^{2} )}{( z - 1 ) ( z - 2 )}

Expand

(z - 1) (z - 2) : z^{2} - 3 z + 2

= \frac{sin ( π z ^{2} ) + cos ( π z ^{2} )}{z ^{2} - 3 z + 2}

(4 cos (t) + 2 sin (t)) (- 2 sin (t) - 3 cos (t))

\frac{( x + 1 ) ^{2}}{x}

π (- \frac{2624 2}{21} - 48)

\frac{2 X ^{3}}{( X ^{2} + 1 ) ^{2}}

(1 + y i)^{2}

What is expand (sin(piz^2)+cos(piz^2))/((z-1)(z-2)) ?
The solution to expand (sin(piz^2)+cos(piz^2))/((z-1)(z-2)) is (sin(piz^2)+cos(piz^2))/(z^2-3z+2)