Question

Calcular el siguiente limite: lim / x--->0 tg(2x) / sen(5x)

Answer 1

(sen(2x)/cos(2x))/sen(5x)
sen(2x)/cos(2x)sen(5x)
(sen(2x)/x)/(cos(2x)sen(5x)/x)
(2/5)(1/cos(2x))
(2/5)(1/cos(2(0)))
(2/5)(1/1)
lim / x--->0 tg(2x) / sen(5x)=2/5