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Kobotan [32]
3 years ago
12

Help me please do it ASAP

Mathematics
2 answers:
katrin2010 [14]3 years ago
7 0

Answer:

it's 12 x12 which is 144, then 35x35 which is

1225. 144 +1225= 1369. square rooted it's 37

Step-by-step explanation:

Answer is 37

madam [21]3 years ago
4 0

Answer:

37

Step-by-step explanation:

Pythagorean Theorem: a^{2} + b^{2} = c^{2}:

a = 12 units                  

b = 35 units               Substitute these values into the Pythagorean Theorem

c = unknown = c

<h2>12^{2}  + 35^{2} = c^{2}</h2><h2 />

Solve for c

144 + 1225 = c²

1369 = c²

c = 37

Hypotenuse / unknown side = 37

Hope this helps :)

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Ostrovityanka [42]

The complex number  -7i into trigonometric form is 7 (cos (90) + sin (90) i) and  3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

<h3>What is a complex number?</h3>

It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.

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\rm =7\left(\cos \left(\dfrac{\pi }{2}\right)+\sin \left(\dfrac{\pi }{2}\right)i\right)\cdot \:4.2426\left(\cos \left(\dfrac{\pi }{4}\right)+\sin \left(\dfrac{\pi }{4}\right)i\right)

\rm 7\cdot \dfrac{21213}{5000}e^{i\dfrac{\pi }{2}}e^{i\dfrac{\pi }{4}}

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After converting into the exponential form:

\rm =\dfrac{148491\left(-1\right)^{\dfrac{3}{4}}}{5000}

From part (b) and part (c) both results are the same.

Thus, the complex number  -7i into trigonometric form is 7 (cos (90) + sin (90) i) and  3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)

Learn more about the complex number here:

brainly.com/question/10251853

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