Weektask 2 solution of trigonometric equation

 

                                             this was the question I have module there.

It’s pretty much easy to do if you could look at this with a quiet different angle. I have shown each of them by breaking them in to three pieces. This is too difficult to go through usual methods. Usually students use to get some substitution on inverse terms to make them easier. But at this moment those usual substitution just like three of them are going to equal with three different parts such as alpha, bita and gamma will not help you to reach for the solution easily. That’s not impossible but it becomes much more complicate and takes much time. If you pay attention on those angles very carefully you may able to see that right hand side is nothing else the expansion of sin2^n. I have given there pi notation also that is nothing else which stands for the multiplication just like summation. Most appropriate substitution for the right hand side is introduced as mention in calculation. If you are familiar for those plain trigonometrical expressions it’s not too hard to find out it. So keep doing it with them no need to explain others up to final stage coz I’m pretty sure that you may able to complete it now.       It’s pretty much easy to do if you could look at this with a quiet different angle. I have shown each of them by breaking them in to three pieces. This is too difficult to go through usual methods. Usually students use to get some substitution on inverse terms to make them easier. But at this moment those usual substitution just like three of them are going to equal with three different parts such as alpha, bita and gamma will not help you to reach for the solution easily. That’s not impossible but it becomes much more complicate and takes much time. If you pay attention on those angles very carefully you may able to see that right hand side is nothing else the expansion of sin2^n. I have given there pi notation also that is nothing else which stands for the multiplication just like summation. Most appropriate substitution for the right hand side is introduced as mention in calculation. If you are familiar for those plain trigonometrical expressions it’s not too hard to find out it. So keep doing it with them no need to explain others up to final stage coz I’m pretty sure that you may able to complete it now.       

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