Remember that transformation between Cartesian and polar system are:
x=r*cos(α)
y=r*sin(α)
From this we can conclude that:
r=√(x^2 + y^2)
Using trigonometry transformations we can write:
r=sin(2α) = 2sin(α)cos(α)
Now we can multiply both sides with r^2:
r^3 = 2(r*sin(α))*(r*cos(α))
Now using some replacements we can write:
(x^2 + y^2)^(3/2) = 2*x*y
Answer:
370
Step-by-step explanation:
a=3 or 7
b=7 or 3
3³+7³=370
10X^2 + 15x-34x -51
5x (2x+3)-17(2x+3)
(5x-17) (2x+3)
