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03.02.2020 •
Mathematics
Asap 25 pts + brainliest to right/best answer
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Ответ:
7 + √-121
Rewrite √-121 as √-1 * √121
√-1 = i
Now you vae 7 + i * √121
Rewrite √121 as √11^2
Remove the radical to get 11
Now you have 7 + i *11
To get final asnswer 7 +11i
Ответ:
7 + 11i
Step-by-step explanation:
7 + sqrt(-121)
7 + sqrt(-1) sqrt (121)
We know that sqrt(-1) = ±i
7 + ±i sqrt(121)
7 + ±i 11
Taking the principal square root
7 + 11i
Ответ: