Cara no 25 dan 26 bagaimana ya? ​

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Cara no 25 dan 26 bagaimana ya? ​

Cara no 25 dan 26 bagaimana ya? ​

25.

Diketahui:

1 < x < 2

misal x = ½, maka

P = frac{1 - 16^{x}}{1 - 4^{x}}

P = frac{1 - 16^{frac{1}{2}}}{1 - 4^{frac{1}{2}}}

P = frac{1 - 4}{1 - 2}

P = frac{-3}{-1}

P = 3

Q = frac{1 - 16^{-x}}{1 - 4^{-x}}

Q = frac{1 - frac{1}{16^{x}}}{1 - frac{1}{4^{x}}}

Q = frac{1 - frac{1}{16^{frac{1}{2}}}}{1 - frac{1}{4^{frac{1}{2}}}}

Q = frac{1 - frac{1}{4}}{1 - frac{1}{2}}

Q = frac{frac{3}{4}}{frac{1}{2}}

Q = frac{3}{4} times frac{2}{1}

Q = frac{3}{2}

maka

P > Q

Jawaban: A

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26.

Diketahui:

beta(w oplus x ominus y otimes z) = z(y + w) - frac{z}{x} \

maka

beta(1 oplus 2 ominus 3 otimes - 4) = ( - 4)(3 + 1) - frac{ - 4}{2} \ = ( - 4)(4) - ( - 2) \ = - 16 + 2 \= - 14

Jawaban: A

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Semoga membantu.