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cos 2 3 5 ∘ + sin 22 5 ∘ − cos 2 12 5 ∘ =...

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A. Rahmawati

Master Teacher

Mahasiswa/Alumni Universitas Pendidikan Indonesia

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Pembahasan

maka jadi, .

cos squared 35 degree plus sin space 225 degree minus cos squared 125 degree maka 

cos space 35 degree equals 0 comma 819 cos squared 35 degree equals 0 comma 670 sin space 225 degree equals negative 0 comma 707 cos space 225 degree equals negative 0 comma 707 cos squared 225 degree equals 0 comma 49 cos squared 35 degree plus sin space 225 degree minus cos squared 225 degree 0 comma 819 minus 0 comma 707 plus 0 comma 4 equals 0 comma 512

jadi, cos squared 35 degree plus sin space 225 degree minus cos squared 125 degree equals 0 comma 512.

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