17-01-2020
Mathematics

contestada

please help guys...

please help guys class=

Respuesta :

Chelboy Chelboy

17-01-2020

Answer:5i

Step-by-step explanation:

√(-25)=√(-1)×√(25) √(-1)=I √(25)=5

Therefore √(-1)×√(25)=i×5=5i

Answer Link

PollyP52 PollyP52

17-01-2020

Answer:

5i and -5i.

Step-by-step explanation:

i^2 = -1.

5i * 5i

= 25 * i^2

= 25 * -1

= -25.

-5i * -5i

= 25 * i^2

= 25 * -1

= -25.

Answer Link

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