If m term of an ap is 1/n and n term is 1/m .fimd the sum of first mn term
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Answered by
1
Hey,,,,,,,
Tm = 1/n & Tn = 1/m
a +(m-1)d = 1/n
a + (n-1)d = 1/m
-------------------------
(m-n)d = m-n/mn
d = 1/mn , & a = 1/mn
now , Tmn = a +(mn-1)d = 1/mn +(mn-1) x 1/mn
=1 +mn-1 / mn = mn/mn = 1.....hence prooved!!
hope ths hlps u ..!!
Tm = 1/n & Tn = 1/m
a +(m-1)d = 1/n
a + (n-1)d = 1/m
-------------------------
(m-n)d = m-n/mn
d = 1/mn , & a = 1/mn
now , Tmn = a +(mn-1)d = 1/mn +(mn-1) x 1/mn
=1 +mn-1 / mn = mn/mn = 1.....hence prooved!!
hope ths hlps u ..!!
Answered by
2
Answer:
Hey,,,,,,,
Tm = 1/n & Tn = 1/m
a +(m-1)d = 1/n
a + (n-1)d = 1/m
-------------------------
(m-n)d = m-n/mn
d = 1/mn , & a = 1/mn
now , Tmn = a +(mn-1)d = 1/mn +(mn-1) x 1/mn
=1 +mn-1 / mn = mn/mn = 1.....hence prooved!!
hope ths hlps u ..!!
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