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AVprozaik [17]
4 years ago
15

Which complex number has an absolute value of 5? –3 + 4i 2 + 3i 7 – 2i 9 + 4i

Mathematics
1 answer:
Nesterboy [21]4 years ago
8 0

Answer:it will be answer 2

Step-by-step explanation:

Just took to and that was correct

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The answer is 30

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Lunna [17]

Answer:

Rational, because it is a fraction.

Step-by-step explanation:

A number which can be represented in the form of p/q where p belongs to integers and q belongs to natural numbers.

=34/3=11.3333

Since 34 and 3 do not have any common factor other than 1, it is a rational number.  The numerator  p=34 belongs to integers and the denominator q=3 belongs to natural numbers.  Also, the decimal expansion is a non-terminating decimal since it does not end.

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Morgan bought a pair of shoes at a sale 25%. Is the amount she paid was $1000, find the marked price.
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5 0
3 years ago
Prove that the max and min values of asinX + bcosX are respectively sqrt.(a^2+b^2) and -sqrt(a^2+b^2) .
strojnjashka [21]
The solution to the problem is as follows:
let y = asinx + bcosx 
<span>
dy/dx = acosx - bsinx </span>
<span>
= 0 for max/min </span>
<span>
bsinx = acosx </span>
<span>
sinx/cosx = a/b </span>
<span>
tanx = a/b </span>
<span>
then the hypotenuse of the corresponding right-angled triangle is √(a^2 + b^2) </span>

<span>the max/min of y occurs when tanx = a/b </span>
<span>
then sinx = a/√(a^2 + b^2) and cosx = b/√(a^2 + b^2) </span>
<span>
y = a( a/√(a^2 + b^2)) + b( b/√(a^2 + b^2)) </span>
<span>
= (a^2 + b^2)/√(a^2 + b^2) </span>
<span>
= √(a^2 + b^2)</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
6 0
3 years ago
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