C-04-Q125mediumsingle_mcqlog218=?\log_2 \dfrac{1}{8} = ?log281=?a−3-3−3b333c13\dfrac{1}{3}3ব্যাখ্যাSince 18=2−3\dfrac{1}{8} = 2^{-3}81=2−3, we get log22−3=−3\log_2 2^{-3} = -3 using .