Recent content by femmed0ll

how would i plug this into the calculator? to find the sum? step by step process? thankss! 4 ∑ 2 cos (π/k) k = 1 i tried this site http://mathbits.com/mathbits/tisection/Algebra2/summation.htm and i got a different answer...so i just need help with the set up on a T.I calc.

graph 1 http://i38.tinypic.com/290rdib.png graph 2 http://i36.tinypic.com/dwchp1.png can you please show the step by step process on how to get the answer(s)? thanks!

Graph 1 http://i33.tinypic.com/6hqq7q.png Graph 2 http://i33.tinypic.com/167w2l4.png can you please show the step by step process on how to get the answer? thanks!

41) ∫ (xdx) / (7x^2 + 3)^5 42) ∫ (sint) / (3 + cos t)^3 dthow do i solve this? i have no idea where to start...can you have a step by step process/analysis on how to figure out the answer? thanks!

4 ∑ 2cos (π/k) k = 1 i have the answer..but all i need it the steps on how to figure it out! thanks!

1) (dy/dx) = (1) / ( 2√x ) + 10 , y(1) = -1 2) (d^(2)r / dt^2) = ( 4 / t^3 ) ; (dr/dt) | t=1 = -5, r(1)=5 ... i have no idea where to start. what are the steps needed to figure out the answer...can someone please solve this for me! t thank you so much.