Buktikan identitas berikut <br /> a. Cotan A + tan A = Sec A . Cosec A<br /><br />

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Grade: Education Mata Pelajaran: matematika

Buktikan identitas berikut
a. Cotan A + tan A = Sec A . Cosec A

Ditanyakan oleh: USER8526

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USER2292

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cot A = cosA/sinA
tan A = sinA/cosA

cot A + tan A = cosA/sinA + sinA/cosA
samakan penyebutnya

(cos^2A+sin^2A)/cosAsinA

karena cos^2A+sin^2A=1

1/cosAsinA = 1/cosA x 1/sinA

1/sinA = cscA dan 1/cosA=secA, sehingga

1/cosA x 1/sinA = secA . cscA

maaf bila ada kesalahan

Dijawab pada tanggal 2 September 2025

Buktikan identitas berikut a. Cotan A + tan A = Sec A . Cosec A

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Jawaban (82)

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