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what is tan2a if sina=1/2
1. 2 answers
2. 2,339 views
linear equations of order one1. (x^2-1)dy/dx+2y=(x+1)^2
1. 1 answer
2. 351 views
y'?1.y=arctan(a+x/1-ax); a is constant 2.y=e^x-e^-x/e^x+e^-x
1. 2 answers
2. 534 views
find the economical proportion between the radius and height of the cylindrical can to give the least dimensions of a metal that
1. 3 answers
2. 1,227 views