Grade 12th passAlgebra
Pls solve the attachment........... ........ . . . ....
Pls solve the attachment........... ........ . . . ....
1 Answer
Vikas TU
f: N ->R
f(1) = 1
and f(1) +2f(2) +3f(3) +.... nf(n) ,
for n> 2 , then f(1994) we wnt to find
f(1) + 2f(2) +3f(3) + .......nf(n) = n(n+1)f(n)
1 = 4f(2)
f(2) = 1/4
1+ 2*1/4 +3f(3) = 12f(3)
f(3) = 1/6
Smilarly
f(4) = 1/8
f(1994) = 1/3998
f(1) = 1
and f(1) +2f(2) +3f(3) +.... nf(n) ,
for n> 2 , then f(1994) we wnt to find
f(1) + 2f(2) +3f(3) + .......nf(n) = n(n+1)f(n)
1 = 4f(2)
f(2) = 1/4
1+ 2*1/4 +3f(3) = 12f(3)
f(3) = 1/6
Smilarly
f(4) = 1/8
f(1994) = 1/3998
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algebra
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