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Hitunglah nilai:

Pertanyaan

Hitunglah nilai:

left parenthesis cos space 300 degree minus sin space 210 degree right parenthesis left parenthesis cos space 300 degree plus sin space 210 degree right parenthesis

Pembahasan Soal:

table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell left parenthesis cos space 300 degree minus sin space 210 degree right parenthesis left parenthesis cos space 300 degree plus sin space 210 degree right parenthesis end cell row blank equals cell cos squared space 300 degree space minus sin squared space 210 degree end cell row blank equals cell left parenthesis cos left parenthesis 360 degree minus 60 degree right parenthesis right parenthesis squared minus open parentheses sin left parenthesis 180 degree plus 30 degree close parentheses right parenthesis squared end cell row blank equals cell open parentheses cos space 60 degree close parentheses squared minus open parentheses negative sin space 30 degree close parentheses squared end cell row blank equals cell open parentheses 1 half close parentheses squared minus open parentheses negative 1 half close parentheses squared end cell row blank equals cell 1 fourth minus 1 fourth end cell row blank equals 0 end table

Jadi, nilai dari left parenthesis cos space 300 degree minus sin space 210 degree right parenthesis left parenthesis cos space 300 degree minus sin space 210 degree right parenthesis adalah 0.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 03 Juni 2021

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