IB Maths SL Trigonometric equations

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IB Maths SL Trigonometric equations

Postby Jane » Sat Apr 13, 2013 4:43 am

IB Mathematics SL– Trigonometry, Trigonometric equations

How can we solve the following trigonometric equation?

for



Thanks
Jane
 
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Re: IB Maths SL Trigonometric equations

Postby miranda » Sat Apr 13, 2013 4:51 am

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
miranda
 
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Re: IB Maths SL Trigonometric equations

Postby Jane » Sat Apr 13, 2013 5:07 am

Thanks a lot!
Jane
 
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