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4 years ago

If u = (1+i3√) and v = (1−i3√), what is uv?

Mathematics

2 answers:

dem82 [27]4 years ago

8 0

Answer:

uv = 4

Step-by-step explanation:

(1+i√3)(1-i√3)

1²-(i√3)²

1-i²√3²

1-(-1)3

krok68 [10]4 years ago

6 0

Answer:

Step-by-step explanation:

FOILing, we have

1+isqrt3-isqqrt3-(-1x3)

isqrt3 cancels out

1-(-3)

1+3

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Mrs. Piper is driving Anna, Jo, and Mai home from school. All of them want to ride in the front seat. How can she make a fair de

WITCHER [35]

Answer:

option-B and option-A

Step-by-step explanation:

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4 years ago

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The table shows the times it took four runners to finish a 400 meter race.

Blababa [14]

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4 years ago

What is the area of trapezoid ABCD? A(-2,2) B(2,5) C(11,-7) D(1,-2)

Ksenya-84 [330]

Answer:

50 sq. units

Step-by-step explanation:

Join one diagonal of the trapezoid ABCD.

Assume that AC is the diagonal.

So, Area of the trapezoid = Area of Δ ABC + Area of Δ CAD.

Now, coordinates of A(-2,2), B(2,5), C(11,-7) and D(1,-2) are given.

We know, that three vertices of a triangle are $(x_{1},y_{1} )$ , $(x_{2},y_{2} )$ and $(x_{3},y_{3} )$ respectively, then the area of the triangle will be given by

$\frac{1}{2} |x_{1}(y_{2}-y_{3})+x_{2}(y_{3}-y_{1})+ x_{3}(y_{1}-y_{2} ) |$

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Again, area of Δ CAD will be

$\frac{1}{2} |11(2-(-2))-2(-2-(-7))+1(-7-2)|= 12.5$ sq units.

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4 years ago

Find u+v.<br> u= (5,1),v = (1,6)

Lelechka [254]

Answer:

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Step-by-step explanation:

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3 years ago

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Nata [24]

Answer:

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Step-by-step explanation:

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3 years ago

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