Cho biểu thức :A=2n+2/2n-4 a) Với giá trị nào của n để A là phân số b) Tìm các giá trị của n để A là số nguyên

the correct answer is 828.07

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it

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