stormi4125 stormi4125
  • 07-03-2021
  • Mathematics
contestada

Can someone help with this pls!! Thank u!

Can someone help with this pls Thank u class=

Respuesta :

sejayadav2111
sejayadav2111 sejayadav2111
  • 07-03-2021

Answer:

(a+bi)×(b+ai)

=>ab+a²i+b²i+abi²

=> ab+(-1)ab+(a²+b²)i

=>(a²+b²)i

so we can say it is purely imaginary number

hope it helped!

Answer Link
qpcnbm
qpcnbm qpcnbm
  • 07-03-2021

Answer:

(a+bi)×(b+ai)

=>ab+a²i+b²i+abi²

=> ab+(-1)ab+(a²+b²)i

=>(a²+b²)i

Step-by-step explanation:

Answer Link

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