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Pada segitiga PQR diketahui bahwa panjang PQ = 4 cm, QR= 6 cm, PR = 7 cm. Nilai sin <PQR ...

Pada segitiga PQR diketahui bahwa panjang PQ = 4 cm, QR= 6 cm, PR = 7 cm. Nilai sin <PQR ...

  1. fraction numerator square root of 252 over denominator 16 end fraction

  2. fraction numerator square root of 253 over denominator 16 end fraction

  3. fraction numerator square root of 254 over denominator 16 end fraction

  4. fraction numerator square root of 255 over denominator 16 end fraction

  5. fraction numerator square root of 257 over denominator 16 end fraction

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Pembahasan

cos Q equals fraction numerator p squared plus r squared minus q squared over denominator 2 p r end fraction  cos Q equals fraction numerator 6 squared plus 4 squared minus 7 squared over denominator 2.6.4 end fraction  cos Q equals fraction numerator 36 plus 16 minus 49 over denominator 2.6.4 end fraction equals fraction numerator up diagonal strike 3 over denominator 2. up diagonal strike 6 squared.4 end fraction equals 1 over 16

X Y equals square root of X Q minus Y Q end root  X Y equals square root of 16 minus 1 end root  X Y equals square root of 256 minus 1 end root equals square root of 255  sin Q equals fraction numerator X Y over denominator X Q end fraction equals fraction numerator square root of 255 over denominator 16 end fraction

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