Question

Encontre os vértices e os focos da elipse 4x^2+25y^2=25

Answer 1

Boa tarde

4x² + 25y² = 25

x²/(25/4) + y² = 1

A² = 25/4 , B² = 4/4

C² = A² - B² 
C² = 25/4 - 4/4 = 21/4

foco F1(√21/2,0) , F2(-√21/2,0) 

vértices V1(5/2,0) , V2(-5/2,0)