Are the planes parallel or perpendicular?

Find if the planes are parallel, perpendicular, or neither. If not parallel then find the equation for the line of intersection. Give details for each step of the solution. z = x + y , 2x - 5y -z = 1 Verify that your answer is indeed a line of intersection.

Convergence test

sigma, infinite above and n=1 below, times (1+1/n)^n test for convergence or divergence, absolute or conditional

Test for convergence or divergence, absolute or conditional of a summation.

sigma, infinite above and n=2 below times 1/n ln^2 n.. (The 1 is over the whole of n ln^2 n)

Test for convergence or divergence, absolute or conditional of a summation.

Sigma infinite over and n=1 under times 2n+1/n^2+2

Test for convergence or divergence, absolute or conditional.

Test for convergence or divergence, absolute or conditional. If it converges, then find the sum too. Sigma, infinity over and n=0 under times [1/n+2 - 1/n+1 ] (this is fraction 1/n+2 minus fraction 1/n+1)

test for convergence or divergence, absolute or conditional. If converges then find the sum too.

sigma infnate above and n=1 below, times 3^n/n!n^2

test for convergence or divergence, absolute or conditional. If converges then find the sum too.

sigma infinate over and n=1 under times, COS PIE n/n. (the cos* pie* n is all over n)

Interval of Convergence

Find the open interval of convergence and test the endpoints for absolute and conditional convergence: (x-2)^n / (2^n)(n^2)

Interval of Convergence

Find the open interval of convergence and test the endpoints for absolute and conditional convergence (x+3)^n / n!

Maclaurin Series

Find the maclaurin series in closed form of: f(x) = ln(x+1) and f(x)= arctan x