Topical Revision Worksheet 3 Logarithm Solution (LC)

Topical Revision Worksheet 3 Topic: Logarithm Question 1 [2008 EOY, Q7] marks Solve the following equations for x: Solution: so is rejected because is undefined [4] Question 2 [2009 EOY, Q10] marks Solve the following equations: (a) , Solution: (rej) [4] (b) , Solution: [5]

(c) . Solution: Optional Check: [4] Question 3 [2010 EOY, Q13] marks Solve the following equations: (a) Solution: [3] (b) Solution: [3]

Question 4 [2010 EOY, Q14] marks Solve the pair of simultaneous equations Solution: , and Hence But if , and will be undefined, hence solution rejected When , [6] Question 5 [2011 EOY, Q13] marks Solve the following equations (a) , Solution: [4]

(b) Solution: [4] Question 6 [2012 EOY, Q3] marks Solve the equation . Solution: [4] Question 7 [2013 EOY, Q1c] marks Solve the equation . Solution: [3]

Question 8 [2014 EOY, Q3] marks (a) Solve the equations Solution: [4] (b) Solution: or Hence [5]

Question 9 [2015 EOY, Q6] marks Solve the following equations. (a) , Solution: [2] (b) . Solution: Hence Solving, [4]