Question

Bantu di jawabkan soal saya no.28

Answer 1

X^2 + y^2 -2px +4 = 0
(x^2 -2px) + (y^2 -0) = -4
(x-p)^2 + (y-0)^2 = -4 + p^2
berarti jari-jari
 r^2 = -4 + p^2
2^2 = -4 + p^2
4 = -4 + p^2
4+4 = p^2
8 = p^2
2√2 =p
jadi p = 2√2