A city is building a fence around a rectangular playground. If the perimeter of the playground is 94 feet and the length of one
2 answers:
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Answer:
1+i
Step-by-step explanation:
To find the 8th roots of unity, you have to find the trigonometric form of unity.
1. Since then
and
This gives you
Thus,
2. The 8th roots can be calculated using following formula:
Now
at k=0,
at k=1,
at k=2,
at k=3,
at k=4,
at k=5,
at k=6,
at k=7,
The 8th roots are
Option C is icncorrect.
For this case we must solve the following linear equation:
Adding similar terms from the left side of the equation:
Subtracting from both sides of the equation we have:
Thus, equality is not fulfilled. So the equation has no solution.
Answer:
No solution