aontitas sdentitas Trgonomti artinya artinya membukikon

Hafalkan rumus - rumusnyoa 2) 3)

4

tan

d = Sec

1 + otan

6) coSec

a cotn

a laerWTWTHPY

TTTTTTTTTTTTTTTy

CoS

5) Sec

trigonom etri

d

in a

tan

a

Pemfaktoran 1) a?- b = (atb) (a-b) (atb) (at - ab +b) 2) a3 4 b3

3) a - b'

(a-b) (a? +ab+ )

4)

a? 4b')(A-b').

a - b4

Contoh

Buktkan !

1) Sina - Cos 4 a

1- 2 cos

d

note!

rulbah yang ruas kiri usahakan membuktikosn, Keika

Sin a- Cos

a

2

bentknya mirip dungan at -b , Sehingga

1

1 .

(I- a cos a)

(Tertbuk h) terbuki 4

2)

P

Sin2 P

3)

1t tan A

Sec A

VTTTTWTTTTy

hn A t os A

1+

Sin A coS A

Sin A t cos

Cos A

Cos A A

Cos A

n A

(in Af osA). cos A

" tec ATerbulct)

Cos A

q- b

note:

b-a

- 1 a-b

a+b

a+b

ota

atb

4)

Sin

- Casec (Cin

(Snaocer )(sin at bina. cosec at cosec

d

a bin a. Casec a + cosec

ind

S)

Cotan d - tan d -

(

Cos a Snin d

1 t

tan d

hn a in

d

Sin

=3

d- cosec d)

Cos a )

}

d]

Cof

1 4 tan d

(Tertuleti)

VTTTTTTTTTI