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Alecsey [184]
2 years ago
11

Complement of 72°. pls help

Mathematics
1 answer:
vesna_86 [32]2 years ago
6 0

Answer:

5453 ok! it's write answer

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PLEASE HELP ME! Find the cube roots of 125(cos 288° + i sin 288°).
shutvik [7]
◆ COMPLEX NUMBERS ◆

125 ( cos 288 + i sin 288 )  can be written as -

125.e^i( 288) 
125.e^i( 288 +360 ) 
125.e^i( 288+ 720)

[ As , multiples of 360 can be added to an angle without changing any trigonometric functions or sign ]

To find the cube root , take the cube root of above 3 expressions ,

We get -
5 e^( i 96 ) 
5 e^( i 216 )  
5 e^( i 336 )

Now using Euler's formula , We rewrite above as -

5 ( cos 96 + i sin 96 ) 
5(c os 216 + i sin 216 ) 
5 ( cos 336 + i sin 336 ) Ans.
6 0
3 years ago
A store sells 3 categories of kitchen items: cups, bowls, and spoons. There are 5 types of cups, 4 types of bowls, and 2 types o
Slav-nsk [51]

Answer:

40.

Step-by-step explanation:

That is 5 * 4 * 2

= 40 combinations of a set of bowl, cup and spoon.

6 0
3 years ago
Suppose two angles are supplementary and one of them measures 31 degress what is the measure of the other angle
Nady [450]
Supplementary means it adds up to 180 degrees.
So if one side is 31 degrees, you would need to subtract that from 180 to find the other side.
-----------------------
180 - 31 = 149
-----------------------
The other angle would be 149 degrees.
6 0
3 years ago
I need lots of help with 15 18 19 20 pls pls pls
Katena32 [7]

Answer:

15) x = 112

18) x = 120

19) x = 31

20) x = 65

Step-by-step explanation:

I hope that is useful for you :)

5 0
3 years ago
What is the answer explained to <br> 6+(-9)-(-5)-(5×0)
Zarrin [17]

Answer:

the answer is 2


Step-by-step explanation:


7 0
3 years ago
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