Determine if the sequence is geometric . If it is , find the common ratio , the explicit formula and the recursive formula . 1. -40 , 20 , -100 , 500

2. 4 , 20 , 100 , 500

3. 4 , 24 , 144, 864

5. 3 , -12 , 48 , -192

answer: procent 54 wynosi 33,33%

there were a lot of them but the first one to pop up on a google search was bts

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen