tolong yang no 5, jazaakumullahu khairon

Jawabannya 0

Maap kalo salah

Lim (1 - sin 2x)/(cos 2x)
= Lim (1 - sin 2x)/(cos 2x) . (1 + sin 2x)/(1 + sin 2x)
= Lim (1 - sin^2 2x)/(cos 2x (1 + sin 2x))
= Lim (cos^2 2x) / (cos 2x (1 + sin 2x))
= Lim (cos 2x)/(1 + sin 2x)
= (cos 2(π/4)) / (1 + sin 2(π/4))
= (Cos π/2) / (1 + sin π/2)
= 0/(1 + 1)
= 0