buktikan bahwa sin b :1-cos b=cosec b+cot b
Matematika
aliefnurdiansya
Pertanyaan
buktikan bahwa sin b :1-cos b=cosec b+cot b
1 Jawaban
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1. Jawaban Robinn
sinb / 1 - cosb = cscb + cotb
sinb / 1 - cosb = 1/sinb + cosb/sinb
sinb / 1 - cosb = sinb + sinbcosb / sin²b
sinb / 1 - cosb = sinb(1 + cosb) / (1 - cos²b)
sinb / 1 - cosb = sinb(1 + cosb) / (1 - cosb)(1 + cosb)
sinb / 1 - cosb = sinb / 1 - cosb