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# how do I treat two 'e^x' multiplied by each other? watch

1. the 'e' stands for exponential

anyway if 'e^x' is multiplied by another 'e^x', then should I treat it as:

e^x+x or e^x*x

by the way, can someone also help me out with this question please:

given that 2sin(x + 30) = cos(x + 60), find the exact values of tanx
2. (e^x)(e^x) = (e^x)^2 = e^2x
3. (Original post by W.H.T)
by the way, can someone also help me out with this question please:

given that 2sin(x + 30) = cos(x + 60), find the exact values of tanx
I just did that question now, but I don't know if I have the correct answers. I subbed my answers in and it worked so...

You expand both sides. Turn whatever you can into actual numbers e.g. turn 2cos(30) into *root3*. Cancel it all down, divide by cosx and you get tanx = -*root*3/9

4. e^2x
5. tanx=-root3/9

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Updated: January 19, 2010
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