Buktikan (sin x – tan x)/sin x. tan x = cos x-1/sin x
Jawaban Terkonfirmasi
(sinx – tanx) / sinx tanx = cosx – 1 / sinx
(sinx – sinx/cosx) / sinx tanx = cosx – 1 / sinx
(sinxcosx – sinx / cosx) / sinxtanx = cosx – 1 / sinx
sinxcosx – sinx / sinxtanxcosx = cosx – 1 / sinx
sinx (cosx – 1) / sinxtanxcosx = cosx – 1 / sinx
cosx – 1 / tanx cosx = cosx – 1 / sinx
cosx – 1 / (sinx/cosx) cosx = cosx – 1 / sinx
cosx – 1 / sinx = cosx – 1 / sinx