p829 m10 HWK

3010 days ago by MATH4R2012

#10) common difference for {e^(ln(x))} is ? a(n)=e^ln(n);show(a(n)) show([e^ln(n) for n in range(10)]) show([n for n in range(10)]) 
       


#20) b(n)={-1,1,3,...} find 8th term show([2*n-1 for n in range(8)]) 
       
#30) if c(4)=-2 and c(12)=30, find c(n) m=(30-(-2))/(12-4);show(m) show([4*n-18 for n in range(13)]) 
       

#40) 2+5+8+...+41 = ? show([3*n+2 for n in range(14)]) show((2+41)/2*14) show(sum([3*n+2 for n in range(14)])) 
       


#50) {15,17,19,...} show([2*n+15 for n in range(40)]) show((15+93)/2*40) show(sum([2*n+15 for n in range(40)]))