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(SNMPTN 2011) Nilai adalah....

(SNMPTN 2011)
Nilai begin mathsize 14px style cos squared space open parentheses 15 to the power of straight o close parentheses plus cos squared space open parentheses 35 to the power of straight o close parentheses plus cos squared space open parentheses 55 to the power of straight o close parentheses plus cos squared space open parentheses 75 to the power of straight o close parentheses end style adalah....

  1. 1

  2. 3 over 2

  3. 0

  4. 1 half

  5. 2

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S. Nur

Master Teacher

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cos squared open parentheses 15 to the power of o close parentheses plus cos squared open parentheses 35 to the power of o close parentheses plus cos squared open parentheses 55 to the power of o close parentheses plus cos squared open parentheses 75 to the power of o close parentheses equals cos squared open parentheses 15 to the power of o close parentheses plus cos squared open parentheses 35 to the power of o close parentheses plus cos squared open parentheses 90 to the power of o minus 35 to the power of o close parentheses plus cos squared open parentheses 90 to the power of o minus 15 to the power of o close parentheses equals cos squared open parentheses 15 to the power of o close parentheses plus cos squared open parentheses 35 to the power of o close parentheses plus sin squared open parentheses 35 to the power of o close parentheses plus sin squared open parentheses 15 to the power of o close parentheses equals open curly brackets cos squared open parentheses 15 to the power of o close parentheses plus sin squared open parentheses 15 to the power of o close parentheses close curly brackets plus open curly brackets cos squared open parentheses 35 to the power of o close parentheses plus sin squared open parentheses 35 to the power of o close parentheses close curly brackets equals 1 plus 1 equals 2

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