142 4. ( 5 ) = 7 → 5 =1 7 ∫ 7 . 7. 5 =1 7 7 + → =1 7 2 + 5 Contoh 2 + = = & = 1.∫ =∫ =∫ =∫ 1 . = 2. ∫ = = → log = 2log25 = 5 3. Kalikan pers tsb dg : + . = 4.Ruas kiri differensial dari . Ruas kiri ( . ) = 1 2 (2 ) =1 2 2 . =1 2 1 2 ∫ 2 . 2 =− 4 1 2 + =− 4 1 2 +
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