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log₃₅₀ 140 = ?
log₅ 2 = m; --> 2 = 5^m
log₇5 = n --> 5 =7ⁿ
350 = 2 · 5² · 7 = 5^m · 7²ⁿ · 7 = 7²ⁿ⁺¹ · 5^m
140 = 2² · 5 · 7 = 5^2m · 7ⁿ⁺¹
log₃₅₀ 140 = log по основанию(7²ⁿ⁺¹ · 5^m) от 5^2m · 7ⁿ⁺¹
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log₃₅₀ 140 = ?
log₅ 2 = m; --> 2 = 5^m
log₇5 = n --> 5 =7ⁿ
350 = 2 · 5² · 7 = 5^m · 7²ⁿ · 7 = 7²ⁿ⁺¹ · 5^m
140 = 2² · 5 · 7 = 5^2m · 7ⁿ⁺¹
log₃₅₀ 140 = log по основанию(7²ⁿ⁺¹ · 5^m) от 5^2m · 7ⁿ⁺¹