Sender: Diane Date: Sat, 28 Aug 1999 15:06:53 -0300
My question is can the following be factored. I am a teacher who needs the factors to this right away. 2 Sin
Thanks Hi Diane Factors I don't see but if the problem is to solve for x then the double angle expressions for sine and cosine make it possible. sin 2x = 2 sin x cos x and
cos 2x = cos Thus
2 sin is equivalent to sin 2x - cos 2x = 0 which is sin 2x = cos 2x or tan 2x = 1.
Hence, in the first quadrant, 2x is 45
Cheers |

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