Having a bit of a problem solving this cos2x = 3sinx +2 thanks
Follow Math Help Forum on Facebook and Google+
Originally Posted by echo123 Having a bit of a problem solving this cos2x = 3sinx +2 thanks Substitute and re-arrange into a quadratic equation in sin x. Factorise. Use the null factor law. That should leave you with: or . One difficult trig equation to solve becomes two simple trig equations to solve ......
View Tag Cloud