Pembuktian Integral cot^2 x dx = -cot x – x + C


\int cot2 x dx = \int (csc2 x – 1) dx (Sifat-Sifat Dasar Trigonometri)

= \int csc2 x dx – \int 1 dx

= -cot x – x + C \blacksquare

NOTE : = \int csc2 x dx = -cot x + C (BUKTI)

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