It is given that y=log2xy = \log_2 xy=log2x.
Find expressions in terms of y y\,y for each of the following.
log2x2\log_2 x^2log2x2
log22x\log_2 2xlog22x
log2x\log_2 \sqrt{x}log2x
104 exam-style questions on WJEC A Level Maths 1.6 Exponentials and logarithms, covering 1.6.1 Exponentials and logarithms, 1.6.2 Exponentials and logarithms, 1.6.3 Exponentials and logarithms, 1.6.4 Exponentials and logarithms, 1.6.5 Exponentials and logarithms, 1.6.6 Exponentials and logarithms, 1.6.7 Exponentials and logarithms, 1.6.8 Exponentials and logarithms, and 1.6.9 Exponentials and logarithms. Each one has a worked solution and a mark scheme showing where the marks go.