指數對數方程

解指數方程 3^{1 - x} = 3^x

Answer explanation

解指數方程 4^{x + 7} = 4^{9 - x}

(a)  

Answer explanation

解指數方程 7^{2x - 1} = 7^{5 + x}

(a)  

Answer explanation

Answer explanation

解指數方程，取答案準確至三位有效數字：2^x = 6

• 2.55

• 2.56

• 2.57

• 2.58

Answer explanation

解指數方程，取答案準確至三位有效數字：1.5^x = 15

• 6.66

• 6.67

• 6.68

• 6.69

Answer explanation

• 0.319

• 0.320

• -0.319

• -0.320

Answer explanation

解對數方程 log (x + 5) = 1  

(a)  

Answer explanation

解對數方程 2 log₉ x - 1 = 0

(a)  

Answer explanation

解對數方程 log (x - 1) = 4 log 3

(a)  

Answer explanation