October 2018 1 40 Report
Dengan menggunakan identitas 1+cot ^{2} \beta =csc ^{2} \beta , buktikan identita-identitas berikut.

 \frac{cot \beta + csc \beta - 1}{cot \beta - csc \beta + 1} = \frac{1 + cos \beta }{sin \beta }

tolong jawab pake cara lengkap yaa

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