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Question : 3 of 160
Marks:
+1,
-0
Solution:
Given,
tn=‌(n+2)(n+3),n∈N‌‌‌⋅⋅⋅⋅⋅⋅⋅(i)Also,
‌+‌+...+‌=‌‌‌‌⋅⋅⋅⋅⋅⋅⋅(ii)From Eq. (i), we get
‌‌=‌‌=‌−‌(By partial fraction)
⇒‌‌‌=(‌−‌)‌=4(‌−‌)=4(‌)‌=4×‌‌=‌=‌So, Assertion is false.
Also, by putting
n=2003in Reason then we observe that it is wrong.
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