Buktikan cos2x/sin2x = ctg 2x
Matematika
Jennieya
Pertanyaan
Buktikan cos2x/sin2x = ctg 2x
1 Jawaban
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1. Jawaban MaulanaRM
sinx/cosx=tanx
dan ctgx=1/tanx
cos2x/sin2x=ctg2x
cos2x/sin2x=1/tan2x
cos2x/sin2x=1/(sin2x/cos2x)
cos2x/sin2x=1 * cos2x/sin2x.
cos2x/sin2x=cos2x/sin2x