Page 1 of 1

IB Maths SL Trigonometric equations

PostPosted: Sat Apr 13, 2013 4:43 am
by Jane
IB Mathematics SL– Trigonometry, Trigonometric equations

How can we solve the following trigonometric equation?

for



Thanks

Re: IB Maths SL Trigonometric equations

PostPosted: Sat Apr 13, 2013 4:51 am
by miranda
IB Maths SL – Trigonometry, Trigonometric equations


By treating the equation as a quadratic in and then factoring.





Now, you have to solve two trigonometric equations

and in the interval

For the first equation we have:



The above equation has only one solution in the interval



For the second equation we have:



The above equation has two solutions in the interval





Hope these help!! :D

Re: IB Maths SL Trigonometric equations

PostPosted: Sat Apr 13, 2013 5:07 am
by Jane
Thanks a lot!