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eftenpuften

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  1. thank you so much atheist. i have done the first part. and for the second part i can do by myself but teacher wants it from mathematica. In normaly they must teach but they showed just a little part of mathematica. and they want the answers in printouts tomorrow. if they accept of course i can write by hand, but the homework is about mathematica if you can help for the second one too,i will be glad. i donno any function or anything else in this program. because my depertman is not mathematics lol. if you can write the full formulas or anything that can help me, i would be glad.
  2. hello everyone. i am very new on mathematica.I have 2 problem at first, i have to eavluate the numerical equivalent of tan(45/Pi+Pi/45) when i wrote on mathematica like this: In[21]:= Tan[45/Pi+Pi/45] Out[21]= \!\(Tan[45\/π + π\/45]\) it gives me that one. can not i get a real number from this?It doesnt solve tangent.i tried Solve[..] or Evaluate[..] but both they didnt work. And secondly how can i find the are of the region enclosed by the curves : y+45(x+45)=0 and y-x^3/45+45=0 ? i really dont have any idea about this. thanks for your helps from now.. it is very urgent i hope someone could help me
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