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Nilai  adalah ....

Nilai begin mathsize 14px style tan space 660 degree minus sin space 900 degree plus cos space left parenthesis negative 390 degree right parenthesis end style adalah ....

  1. begin mathsize 14px style.... end style 

  2. undefined 

Jawaban:

begin mathsize 14px style tan space 660 degree minus sin space 900 degree plus cos open parentheses negative 390 degree close parentheses equals tan space open parentheses 660 degree minus 360 degree close parentheses minus sin open parentheses 900 degree minus 2 cross times 360 degree close parentheses plus cos open parentheses 390 degree minus 360 degree close parentheses equals tan space 300 degree minus sin space 180 degree plus cos space 30 degree equals negative tan open parentheses 360 degree minus 300 degree close parentheses minus 0 plus 1 half square root of 3 equals negative tan space 60 degree plus 1 half square root of 3 equals negative square root of 3 plus 1 half square root of 3 equals negative 1 half square root of 3 end style 

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