Buktikan! Tan^2 A. Csc^2 A = sec^2 A Sec A. Tan (90 derajat - A) = csc A Nyepam. Saya laporkan!

Materi : Identitas Trigonomteri
Kelas : XI SMA MIPA

1 . [][]
tan^2 A . csc^2 A = sec^2 A
(sin^A/cos^2 A) × (1/sin^2 A) = sec^2 A
1/cos^2 A = sec^2 A
sec^2 A = Sec^2 A

Terbukti ....

2. [][]
Sec A . tan (90 ° - A ) = csc A
sec A . cot A = csc A
(1/cos A) . (cos A / sin A) = csc A
1/sin A = csc A
csc A = csc A

Terbukti ....

1.
tan² A * csc² A = sec² A
sin² A /cos² A* 1/sin² A = sec² A
1/cos²A = sec² A
sec² A = sec² A
(TERBUKTI)


2.
sec A * tan(90-A) = csc A
1/cos A * cot A
1/cos A * cos A/sinA
= 1/sinA
= csc A
(TERBUKTI)