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rewona [7]
3 years ago
9

Explain in detail with at least two sentences how to represent the product of A and B geometrically given that A=15+56i and B =

7 + 4i. Give the coordinate of A • B in polar form.
Mathematics
1 answer:
Nookie1986 [14]3 years ago
7 0

Basically each part of the first complex number gets multiplied by each part of the second complex number. You are multiplying 2 binomials.

(15 + 56i(7 + 4i)

= 105 + 60i + 392i + 224i^2

= 105 + 452i - 224 ( because i^2 = -1)

= - 119 + 452i


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What is the number nearest to 10000 which is exactly divisible by 3, 4, 5, 6, 7, and 8?.
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#1: divisibility by 2

A number is divisible by 2 if its last digit is even.

# 2: divisibility by 3:

A number is divisible by 3 if the sum of its digits is divisible by 3.

# 3: divisibility by 4

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#4: divisibility by 5

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# 5: divisibility by 6

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# 6: divisibility by 7

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#7: divisibility by 8

A number is divisible by 8 if the number represented by its last three digits is divisible by 8.

#8: divisibility by 9

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# 9: divisibility by 10

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To get the number nearest to 10000 that is divisible by 3, 4, 5, 6, 7, and 8, consider first the numbers that are divisible by 5(numbers ending in 5 or 0) and narrow it down to numbers ending in 0 since numbers ending in 5 is not divisible by 2, thus making it indivisible by 6.

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7 0
1 year ago
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5 0
3 years ago
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Step-by-step explanation:

I hope this is correct.

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