Mathematics (sequence & series + Logarithms)

[usman]

plz help me out!!!

find the nth term of da followin' series 4 me

3,6,11,20,37,70
&
2,3,5,9,17,33

also plz solve dis logarithmic equation 4 me (without using graphs) and find da exact value of x

2^x + x = 50

NB: 2^x stands for 2 raised to the power x

 

[hassam]

2 POWER N + N
AN D
2 POWER N +1

http://www.youtube.com/watch?v=VgVJrSJx ... re=related

 

[usman]

Tx man but the second one doesn't satisfy the equation

 

[usman]

it is 1 + 2^(n-1)

 

[hassam]

frm wher u got this

 

[usman]

mathematica 7.0