3.Honestly I don't even know where to begin... I'm 15 years old and I've been homeschooled all my life. A
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. A few years back I kinda dropped the ball with school. If I didn't understand something, I gave up on it. Because of that I've been pretty behind for quite a while now, but this year I decided to change and become a better student. There's still a few things I'm not entirely great at, but out of them all math is one that I suffer from the most. Geometry hasn't been too hard up until now, but I never quite understood certain aspects of Algebra and my current Geometry lessons require some algebraic knowledge which is what I lack. I've tried doing it on my own but I don't understand things easily, Khan Academy is super helpful but most of the time, the amount of knowledge overwhelms me and I don't learn a thing from the video/lesson. I know this is not going to be a simple one and done fix, but I know that I can't just keep passing by without improving my math skills so that's why I came here. I don't know how this works or if it's even going to help, but right now I think it's worth the try. Thank you in advance.
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8.Let a = sin b, 0 < b < pi/2.
Find, in terms of b, the solutions of sin 2x =
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So far I just tried to do the obvious and substitute -a for - sin b. Like so;
sin 2x = - sin b
which then becomes;
sin 2x = sin -b
and then I can remove the sines and rearrange for x, which gives me this.
2x = -b
x = -b/2
However, if I were to look at the domain of b. Any value within the domain will give a value that doesn't fit the domain of x. Any suggestions would be great. Thank you!
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