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sin 4 7 π ​ = ... .

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S. Nur

Master Teacher

Jawaban terverifikasi

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 sin space fraction numerator 7 straight pi over denominator 4 end fraction equals negative 1 half square root of 2.

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Pembahasan

Dengan demikian, .

table attributes columnalign right center left columnspacing 0px end attributes row cell sin space fraction numerator 7 straight pi over denominator 4 end fraction end cell equals cell sin space open parentheses fraction numerator 8 straight pi minus straight pi over denominator 4 end fraction close parentheses end cell row blank equals cell sin space open parentheses fraction numerator 8 straight pi over denominator 4 end fraction minus straight pi over 4 close parentheses end cell row blank equals cell negative sin space straight pi over 4 end cell row blank equals cell negative sin space up diagonal strike 180 degree end strike to the power of 45 degree end exponent over up diagonal strike 4 subscript 1 end cell row blank equals cell negative sin space 45 degree end cell row blank equals cell negative 1 half square root of 2 end cell end table


Dengan demikian, sin space fraction numerator 7 straight pi over denominator 4 end fraction equals negative 1 half square root of 2.

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