![Riješite {2 + 2sin2x} / {2 (1 + sinx) (1-sinx)} = sek ^ 2x + tanx? Riješite {2 + 2sin2x} / {2 (1 + sinx) (1-sinx)} = sek ^ 2x + tanx?](https://img.go-homework.com/img/trigonometry/solve-22sin2x-/-21sinx1-sinx-sec2xtanx-.jpg)
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Kako vam pokazati tanx / tanx + sinx = 1/1 + cosx?
![Kako vam pokazati tanx / tanx + sinx = 1/1 + cosx? Kako vam pokazati tanx / tanx + sinx = 1/1 + cosx?](https://img.go-homework.com/img/blank.jpg)
LHS = tanx / (tanx + sinx) = poništi (tanx) / (poništi (tanx) (1 + sinx / tanx)) = 1 / (1 + sinx * cosx / sinx) = 1 / (1 + cosx) = RHS
Kako dokazati (cotx + cscx / sinx + tanx) = (cotx) (cscx)?
![Kako dokazati (cotx + cscx / sinx + tanx) = (cotx) (cscx)? Kako dokazati (cotx + cscx / sinx + tanx) = (cotx) (cscx)?](https://img.go-homework.com/img/blank.jpg)
Provjereno u nastavku (cotx + cscx) / (sinx + tanx) = (cotx) (cscx) (cosx / sinx + 1 / sinx) / (sinx + sinx / cosx) = (cotx) (cscx) ((cosx + 1) / sinx) / ((sinxcosx) / cosx + sinx / cosx) = (cotx) (cscx) ((cosx + 1) / sinx) / ((sinx (cosx + 1)) / cosx) = (cotx) (cscx) ) (poništi (cosx + 1) / sinx) * (cosx / (sinxcancel ((cosx + 1))))) = (cotx) (cscx) (cosx / sinx * 1 / sinx) = (cotx) (cscx) cotx) (cscx) = (cotx) (cscx)
Kako provjeriti (1 + tanx) / (sinx) = cscx + secx?
![Kako provjeriti (1 + tanx) / (sinx) = cscx + secx? Kako provjeriti (1 + tanx) / (sinx) = cscx + secx?](https://img.go-homework.com/img/blank.jpg)
Koristite sljedeća pravila: tanx = sinx / cosx 1 / sinx = cscx 1 / cosx = secx Početak s lijeve strane ("LHS"): => "LHS" = (1 + tanx) / sinx = 1 / sinx + tanx / sinx = cscx + tanx xx1 / sinx = cscx + otkazati (sinx) / cosx xx1 / otkazati (sinx) = cscx + 1 / cosx = boja (plava) (cscx + secx) QED