erweitern (3+(2i)/n)-(7(3+(2i)/n)^2)

Lösung

erweitern

(3 + \frac{2 i}{n}) - (7 (3 + \frac{2 i}{n})^{2})

\frac{- 60 n ^{2} + 28}{n ^{2}} - \frac{82}{n} i

Schritte zur Lösung

(3 + \frac{2 i}{n}) - (7 (3 + \frac{2 i}{n})^{2})

Vereinfache

(3 + \frac{2 i}{n}) - (7 (3 + \frac{2 i}{n})^{2}) : 3 + \frac{2 i}{n} - 7 (3 + \frac{2 i}{n})^{2}

= 3 + \frac{2 i}{n} - 7 (3 + \frac{2 i}{n})^{2}

Schreibe

- 7 (3 + \frac{2 i}{n})^{2}

um:

\frac{- 63 n ^{2} + 28}{n ^{2}} - \frac{84}{n} i

= 3 + \frac{2 i}{n} + \frac{- 63 n ^{2} + 28}{n ^{2}} - \frac{84}{n} i

Vereinfache

3 + \frac{2 i}{n} + \frac{- 63 n ^{2} + 28}{n ^{2}} - \frac{84}{n} i : \frac{- 60 n ^{2} + 28}{n ^{2}} - \frac{82}{n} i

= \frac{- 60 n ^{2} + 28}{n ^{2}} - \frac{82}{n} i

e x p an d - u_{2} e^{t - 2} + u_{2} e^{2 (t - 2)}

e x p an d \frac{( 4 x + 5 ) ( 2 x + 3 )}{2}

e x p an d - cos ((n - 1) \cdot π)

e x p an d \frac{170 ( x )}{( x + 2 ) ^{2}}

e x p an d, x (, x x 2 + y^{2})