Помогите пожалуйста. . . . . . . . . . . . . . .

Question

Помогите пожалуйста. . . . . . . . . . . . . . .

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Comments

first one what's the log base?

Answer 1

Log₆0,8+log₆45 = log₆(0,8*45) = log₆36 = 2
50¹¹·5⁺¹⁰:10⁹=5¹¹·10¹¹·5⁻¹⁰·10⁻⁹=5·10²=500
6⁻³·18⁷:3¹⁰ = 6⁻³·6⁷·3⁷·3⁻¹⁰ = 6⁴·3⁻³ = 2⁴·3⁴·3⁻³ = 2⁴·3 = 16·3 = 48
 

= 7² = 49