Step-by-step explanation:
The product of the sum of a and b and their difference:
(a + b)(a - b) = a² - b²
Proof:
L = (a + b)(a - b) <em>use FOIL</em>
L = (a)(a) + (a)(-b) + (b)(a) + (b)(-b)
L = a² - ab + ab - b² <em>combine like terms</em>
L = a² - b² + (-ab + ab)
L = a² - b²
R = a² - b²
L = R
Altogether there are 8 parts. Thus, the part that is yellow is 3/8, or 37.5%
Given:
The equation of circle is
To find:
The polar form of given circle.
Solution:
We have,
![[\because (a+b)^2=a^2+2ab+b^2]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%28a%2Bb%29%5E2%3Da%5E2%2B2ab%2Bb%5E2%5D)
Subtracting 9 from both sides, we get
We know that, 
and 
.
and 
We know that, r is radius it cannot be 0. So,
Therefore, the correct option is A.
For every 4 white marables there are 9 black marables in the jar
You just puts them in the order on the line
