A sequence is defined by the recurrence relation `u(n+1)=`u(n)/4`+8` with `u(0)=32`.Evaluate `u(2)`

A sequence is defined by the recurrence relation u(n+1)=-3u(n)+7 with u(0)=2 What is the value of u(2)?

Find sum_(n=1)^n u_n if u_n=sum_(n=0)^n1/2^n .

Consider the sequence u_(n)=sum_(r=1)^(n)(r)/(2^(r)),n>=1 then the lim it_(n rarr oo)u_(n)

When some object is kept at a distances u_(1) and u_(2) from the concave mirror then size of images are found to be same. If magnitude of focal length can be written as ( u_(1)+ u_(2))//n , then what will be the value of n ? |{:(0,1,2,3,4,5,6,7,8,9):}|

If u_(1) and u_(2) are the units selected in two systems of measurement and n_(1) and n_(2) their numerical values, then

If u_n = 2cos n theta then u_1u_n - u_(n-1) is equal to

If u_(n) = sin ^(n) theta + cos ^(n) theta, then 2 u_(6) -3 u_(4) is equal to