`sum_(k=0)^(359) k cosk^@=`

Find the value of the sum_(k=0)^(359)k.cos k^(@)

Find the value of the sum_(k=0)^359 k.cos k^@ .

Evaluate sum_(k=0)^(5)k^(2)

sum_(k=0)^(5)(-1)^(k)2k

The value of sum_(k=0)^(oo)(cos(k pi)6^(k))/(k!) is

The integer part of the number sum_(k=0)^(44)(1)/(cos(k)^(@)cos(k+1)^(@)) is

Suppose det [{:(sum_(k=0)^(n)k,,sum_(k=0)^(n).^nC_(k)k^2),(sum_(k=0)^(n).^nC_(k)k,,sum_(k=0)^(n).^nC_(k)3^(k)):}]=0 holds for some positive integer n. then sum_(k=0)^(n)(.^nC_(k))/(k+1) equals ............

Prove that sum_(k=0)^(9) x^(k)"divides" sum_(k=0)^(9) x^(kkkk)

Prove that sum_(k=0)^(9) x^(k)"divides" sum_(k=0)^(9) x^(kkkk)