" (iii) "[10],[sum_(n=2)^(10)4^(n)]

Evaluate : (i) sum_(n=1)^(10)(2+3^(n))" " (ii) sum_(k=1)^(n)[2^(k)+3^((k-1))]" " (iii) sum_(n=1)^(8) 5^(n)

Evaluate the following: sum_(n=2)^(10)4^(n)

Evaluate the following: sum_(n=2)^(10)4^n

Let f(n)=sum_(k=-n)^(n)(cot^(-1)((1)/(k))-tan^(-1)(k)) such that sum_(n=2)^(10)(f(n)+f(n-1))=a pi then find the value of (a+1) .

The value of sum_(n=1)^(10) sum_(m=1)^(10) (m^(2)+n^(2)) equals

if in a series t_(n)=(n+1)/((n+2)!) then sum_(n=0)^(10)t_(n) equal to

Find the sum: sum_(n=1)^(10){(1/2)^(n-1)+(1/5)^(n+1)}dot

The value of [sum_(n=1)^(10)int_(-2n-1)^(-2n)sin^(27)x dx+sum_(n=1)^(10)int_(2n)^(2n+1)sin^(27)xdx] is equal to -