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標題:
Maths-----log
發問:
log2=0.3010 log3=0.4771 log7=0.8451 a. log35=? b. log[288^(1over 5)]
最佳解答:
log 35 = log (10 * 7 / 2) = log 10 + log 7 - log 2 = 1 + 0.8451 - 0.3010 = 1.5441 log (288^(1/5)) = (1/5) * log 288 = (1/5) * log (2^5 * 3^2) = (1/5) * (5 * log 2 + 2 * log 3) = 0.2 * ( 5 * 0.301 + 2 * 0.4771) = 0.49184
a=1.5441 b=1.7604(^係唔係乘?) I hope I can help you0D7DAC4E7B8CAAC5
Maths-----log
發問:
log2=0.3010 log3=0.4771 log7=0.8451 a. log35=? b. log[288^(1over 5)]
最佳解答:
log 35 = log (10 * 7 / 2) = log 10 + log 7 - log 2 = 1 + 0.8451 - 0.3010 = 1.5441 log (288^(1/5)) = (1/5) * log 288 = (1/5) * log (2^5 * 3^2) = (1/5) * (5 * log 2 + 2 * log 3) = 0.2 * ( 5 * 0.301 + 2 * 0.4771) = 0.49184
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其他解答:a=1.5441 b=1.7604(^係唔係乘?) I hope I can help you0D7DAC4E7B8CAAC5
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