Page 6 - KIII - TRIGONOMETRIA 4TO SEC
P. 6
Trigonometría 4° Secundaria
18
Semana
4
2
2
4
1. Sen x + Cos x = 1 - 2Sen xCos x
2
2
6
2. Sen x + Cos x = 1 - 3Sen xCos x
6
3. Tgx + Ctgx = Secx Cscx
2
2
2
4. Sec x + Cos x = Sec x Csc x
2
5. (1 + Senx + Cosx) = 2(1 + Senx) (1 + Cosx)
2
Senx 1 Cosx
6.
1 Cosx Senx
Cosx 1 Senx
7.
1 Senx Cosx
1
8. Sec x Tgx
Secx Tgx
1
9. Cscx Ctgx
Cscx Ctgx
PROBLEMAS RESUELTOS
Cosx 1 Senx
1. Reducir: J
1 Senx Cosx
Resolución
Cosx 1 Senx
Se sabe que
1 Senx Cosx
Reemplazando :
1 Senx 1 Senx
J
Cosx Cosx
1 Senx 1 Senx
J
Cosx
2 1
J 2
Cosx Cosx
J 2Sec x
Compendio -119-