Rewrite the equation without using logarithmsln A = 0.5 ln B 5
Solve the simultaneous equations:logx y =2xy = 8
7 is not a power of 5the calculator works with log or ln.Calculate log5 7 correct to 3 s.f.
• Solve logarithmic and exponential equations applying basic logarithmic rules.• Calculate and operate with natural logarithms.• Deduce and apply the formula to change the base of logarithms.By the end of the lesson you will be able to:LOGARITHMS
Change of base:y = logabrewrite without using log:apply logc to both sides:make y the subject:
Calculate log5 7 correct to 3 s.f.Calculate log7 19 correct to 3 s.f.