isabel6631 isabel6631

05-06-2020
Mathematics

contestada

help me!!
solve for d

help me solve for d class=

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

05-06-2020

Answer:

d =±2sqrt(7) i

Step-by-step explanation:

d^2 = -28

Take the square root of each side

sqrt(d^2) = ±sqrt(-28)

d = ±sqrt(-28)

d = ±sqrt(-1)sqrt(28)

We know that sqrt(-1) = i

d =±i*sqrt(4)sqrt(7)

d =±i 2sqrt(7)

d =±2sqrt(7) i

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