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Simplify each of the following logarithmic expressions, giving the final answer as a single logarithm. a) log 7 log 22 2+ b) log 20 log 42 2− c) 3log 2 log 85 5+ d) 2log 8 5log 26 6− e) log 8 log 5 log 0.510 10 10+ − log 142, log 52, log 645, log 26, log 8010
Maths revision video and notes on the topic of logarithms.
Calculation Problems. Instructions. • Use black ink or ball-point pen. • Answer all questions. • Answer the questions in the spaces provided. – there may be more space than you need. rately drawn, unless otherwise indicate. • You must show all your working out. Information. • The marks for each question are shown in brackets.
base 10 and base e Logarithms to base 10, log 10, are often written simply as log without explicitly writing a base down. So if you see an expression like logx you can assume the base is 10. Your calculator will be pre-programmed to evaluate logarithms to base 10. Look for the button marked log. e, e
Logarithms - Past Edexcel Exam Questions. 1. (Question 7 - C2 May 2018) (i) Find the value of y for which. 1:01y 1 = 500: Give your answer to 2 decimal places. (ii) Given that. 2 log 4(3x + 5) = log 4(3x 3 + 8) + 1; x > 5. (a) show that. 9x2 + 18x. 7 = 0: (b) Hence solve the equation.
Maths Genie GCSE Questions & Answers. These are resources that we have pulled together from Maths Genie to help you revise your GCSE Maths.
