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Hitung nilai dari: cos 2.40 0 ∘

Hitung nilai dari:  

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S. Nur

Master Teacher

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Ingat dan . Jadi nilai

Ingat begin mathsize 14px style cos space left parenthesis k times 360 to the power of ring operator plus x right parenthesis equals cos space x end style dan begin mathsize 14px style cos space left parenthesis 180 to the power of ring operator plus x right parenthesis equals negative cos space x end style.

Jadi nilai

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell cos space 2.400 to the power of ring operator end cell equals cell cos space left parenthesis 6 times 360 to the power of ring operator plus 240 right parenthesis end cell row blank equals cell cos space 240 to the power of ring operator end cell row blank equals cell cos space left parenthesis 180 to the power of ring operator plus 60 to the power of ring operator right parenthesis end cell row blank equals cell negative cos space 60 to the power of ring operator end cell row blank equals cell negative 1 half end cell end table end style

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