Pertanyaan

Tentukanlah nilai sinus, cosinus, dan tangen untuk setiap titik yang disajikan berikut: d. T ( 3.5 , − 7.75 )

Tentukanlah nilai sinus, cosinus, dan tangen untuk setiap titik yang disajikan berikut:

d. $T (3.5, - 7.75)$

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Klaim

D. Rajib

Master Teacher

Mahasiswa/Alumni Universitas Muhammadiyah Malang

Jawaban terverifikasi

Jawaban

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Pembahasan

panjang sisi miring dapat dicari dengan Pythagoras. panjang sisi miring dapat dicari dengan Pythagoras. Jadi, .

panjang sisi miring dapat dicari dengan Pythagoras.

begin mathsize 14px style sisi space miring equals straight r straight r equals square root of open parentheses 3 comma 5 close parentheses squared plus open parentheses 7 comma 75 close parentheses squared end root space equals square root of 12 comma 25 plus 60 comma 06 end root space equals square root of 72 comma 3 end root space equals 8 comma 5 end style

$begin mathsize 14px style sin alpha equals fraction numerator sisi space depan space alpha over denominator sisi space miring end fraction space space space space space space space space space space space space space space space cos alpha equals fraction numerator sisi space samping space alpha over denominator sisi space miring end fraction space space space space space space space space space space equals negative fraction numerator 7 comma 75 over denominator 8 comma 5 end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 3 comma 5 over denominator 8 comma 5 end fraction space space space space space space space space space space space space space space space space space space space equals negative 0 comma 91 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 0 comma 41 space space space space space space end style$

$begin mathsize 14px style tan alpha equals fraction numerator sisi space depan space alpha over denominator sisi space samping end fraction space space space space space space space equals negative fraction numerator 7 comma 75 over denominator 3 comma 5 end fraction space space space space space space space equals negative 2 comma 21 end style$

Jadi, .