Search found 4 matches


maths

how to solve this?

f(x) = 2/(4^x + 1)

find the value of
f(1/2009) + f(2/2009) +... + f(2008/2009)

by samuel minato

Fri Dec 02, 2011 9:04 pm
Forum: Problem Solving
Topic: maths
Replies: 1
Views: 758

trigonometric series.

how to find the Sn of this series?

sin a + sin 2a + sin 4a + .... + sin 2^(n-1)a

by samuel minato

Thu Dec 01, 2011 8:08 pm
Forum: Problem Solving
Topic: trigonometric series.
Replies: 1
Views: 832

thank you...

by samuel minato

Thu Dec 01, 2011 7:41 pm
Forum: Problem Solving
Topic: series.
Replies: 2
Views: 892

series.

hi... can anyone help me to find the sum of this series?

a + a^2 + a^4 + a^8 +... + a^(2^(n-1))= Sn

so what is the formula for Sn?

by samuel minato

Wed Nov 30, 2011 8:31 pm
Forum: Problem Solving
Topic: series.
Replies: 2
Views: 892