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Bentuk sederhana dari 4−15​​ − 4 + 15​​ adalah....

Pertanyaan

Bentuk sederhana dari square root of 4 minus square root of 15 end root space minus space square root of 4 space plus space square root of 15 end root adalah....

  1. -6

  2. negative square root of 6

  3. square root of 6

  4. 6

N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Muhammadiyah Malang

Jawaban terverifikasi

Pembahasan

straight p equals square root of 4 plus square root of 15 end root minus square root of 4 plus square root of 15 end root,maka

straight p squared equals open parentheses square root of 4 minus square root of 15 end root minus square root of 4 plus square root of 15 end root close parentheses squared left right double arrow straight p squared equals open parentheses square root of 4 minus square root of 15 end root close parentheses minus 2 open parentheses square root of 4 minus square root of 15 end root close parentheses open parentheses square root of 4 plus square root of 15 end root close parentheses plus open parentheses square root of 4 plus square root of 15 end root close parentheses left right double arrow straight p squared equals 8 minus 2 square root of open parentheses square root of 4 minus square root of 15 end root close parentheses open parentheses square root of 4 plus square root of 15 end root close parentheses end root left right double arrow straight p squared equals 8 minus 2 square root of 16 minus 15 end root left right double arrow straight p squared equals 6 left right double arrow straight p space equals plus-or-minus square root of 6

karena open parentheses square root of 4 minus square root of 15 end root close parentheses less than open parentheses square root of 4 plus square root of 15 end root close parentheses

Maka nilai p=negative square root of 6

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