A recipe calls for 3 cups of flour for every 5 eggs. How many cups of flour do you need for every 1 egg?
1 answer:
Answer:
Step-by-step explanation:
Let's set up a proportion using this setup.
We know that 3 cups of flour are needed for every 5 eggs.
We don't know how many cups are needed for 1 egg, so we say x cups for 1 egg.
We are solving for x, so we must isolate the variable. x is being divided by 1. The inverse of division is multiplication, so multiply both sides by 1.
For every 1 egg, 3/5 or 0.6 cups of flour are needed.
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Answer and step-by-step explanation:
The polar form of a complex number is the number
where
is called the modulus and
is called the argument. You can switch back and forth between the two forms by either remembering the definitions or by graphing the number on Gauss plane. The advantage of using polar form is that when you multiply, divide or raise complex numbers in polar form you just multiply modules and add arguments.
(a) let's first calculate moduli and arguments
now we can write the two numbers as
(b) As noted above, the argument of the product is the sum of the arguments of the two numbers:
(c) Similarly, when raising a complex number to any power, you raise the modulus to that power, and then multiply the argument for that value.
Now, in the last step I've used the fact that , or in other words, the complex exponential is periodic with
as a period, same as sine and cosine. You can further compute that power of two with the help of a calculator, it is around 16 million, or leave it as is.