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Perhatikan deret berikut 1 + lo g cos x + lo g 2 cos x + lo g 3 cos x Jumlah deret ini adalah s, dapat mengambil setiap nilai ...

Perhatikan deret berikut

Jumlah deret ini adalah s, dapat mengambil setiap nilai ...

  1. 1 half less than S less than 1

  2. 1 half less than S less than 2

  3. S space less than space 1 half

  4. .S > 1

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R. RGFLSATU

Master Teacher

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1 space plus space L o g cos x space plus space L o g space 2 cos x space plus L o g 3 space cos x space...  J u m l a h space d e r e t space a d a l a h  r equals fraction numerator U 2 over denominator U 1 end fraction equals fraction numerator log cos x over denominator 1 end fraction equals log cos x  minus 1 less than r less than 1  minus 1 space less than space L o g space cos space x space less than space 1 comma space n i l a i space L o g a r i t m a space cos space x comma space j i k a greater than 0.  S e h i n g g a space n i l a i space r a s i o n minus 1 less than r less than 1  U n t u k space r space m i n i m u m equals space minus 1  S tilde equals fraction numerator a over denominator 1 minus r end fraction equals fraction numerator 1 over denominator 1 minus left parenthesis negative 1 right parenthesis end fraction 1 half  S tilde equals fraction numerator a over denominator 1 minus r end fraction equals fraction numerator 1 over denominator 1 minus left parenthesis 0 right parenthesis end fraction equals 1  M a k a space j u m l a h space d e r e t space 1 half less than S less than 1

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