[CAS] ABS EXPAND new cmd

03212017, 05:03 AM
Post: #1




[CAS] ABS EXPAND new cmd
solve((r^2) = ((r*sin(x)4)^2),r); returns
{ (4/(sin(x)1)), (4/(sin(x)+1)) } Early transcendentals by Dennis G. Zill and others ... book show r^2 = (r*sin(x)4)^2 √(r^2) = √((r*sin(x)4)^2) r = +(r*sin(x)4) or r = (r*sin(x)4) rr*sin(x) = 4 or r+r*sin(x) = 4 r*(1sin(x)) = 4 or r*(1+sin(x)) = 4 r = 4/(1sin(x)) or r = 4/(1+sin(x)) You can see the importance ABS EXPAND command, which is available in the CLASPAD400 And I wish please, that Bernard can also include him in the xCAS. 

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