OCR C1 2011 June — Question 5

Exam BoardOCR
ModuleC1 (Core Mathematics 1)
Year2011
SessionJune
TopicIndices and Surds

5
  1. Express \(\sqrt { 300 } - \sqrt { 48 }\) in the form \(k \sqrt { 3 }\), where \(k\) is an integer.
  2. Express \(\frac { 15 + \sqrt { 40 } } { \sqrt { 5 } }\) in the form \(a \sqrt { 5 } + b \sqrt { 2 }\), where \(a\) and \(b\) are integers.