the nth term series 1/1.3+1/3.5+1/5.7 +.......... infinity
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Step-by-step explanation:
1/3 + 1/15 + 1/35 ....
= 1/1.3 + 1/3.5 + 1/5.7 + ....
= 1/2[ 1 - 1/3 + 1/3 - 1/5 + 1/5 - 1/7 ......]
= 1/2[1]
= 1/2
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