What is it? I will help. :)
yes they are similiar is sam shape diffrent siz
Answer:
cosA =
Step-by-step explanation:
cosA = = =
Answer:
The next two terms after a1 is
-6 and then 18
Step-by-step explanation:
Geometric sequence means your pattern for the terms is multiplication by the same number.
So a1 is the first term and r is your common ratio.
The common ratio is what you are multiplying by each time to figure out the next term.
So the geometric sequence goes like this:
a1 , a1*r , (a1*r)*r or a1*r^2 , a1*r^3 ,....
So anyways you have
first term a1=2
second term a2=2(-3)=-6
third term a3=-6(-3)=18
And so on...
Hopefully this helps: 16(x^2 + 6x + y^2) = 5(8y + 63)
I'm not sure where to take it from there, but hopefully someone can build off of that. :)