OCR C2 2006 January — Question 7

Exam BoardOCR
ModuleC2 (Core Mathematics 2)
Year2006
SessionJanuary
TopicLaws of Logarithms

7
  1. Express each of the following in terms of \(\log _ { 10 } x\) and \(\log _ { 10 } y\).
    (a) \(\log _ { 10 } \left( \frac { x } { y } \right)\)
    (b) \(\log _ { 10 } \left( 10 x ^ { 2 } y \right)\)
  2. Given that $$2 \log _ { 10 } \left( \frac { x } { y } \right) = 1 + \log _ { 10 } \left( 10 x ^ { 2 } y \right)$$ find the value of \(y\) correct to 3 decimal places.