化简 (9-i^7)(3+i^5)

解答

化简

(9 - i^{7}) (3 + i^{5})

26 + 12 i

求解步骤

(9 - i^{7}) (3 + i^{5})

Apply FOIL method

(9 - i^{7}) (3 + i^{5}) : 12 i + 26

= 12 i + 26

Rewrite in standard complex form:

26 + 12 i

= 26 + 12 i

s im pl i f y \frac{- 3 x ^{2}}{x ^{2}}

s im pl i f y \frac{x ^{2} + 8 x + 16}{x ^{2} + 5 x + 4}

s im pl i f y 1000 (1 + 0.1404811357)^{7}

s im pl i f y (4 - 3 i) (2 + 5 i)

j o in - \frac{π}{3} - π