√1 + 3 + 5 + 7 + ⋯ + 53 = __________
(a) 11 (b) 13 (c) 7 (d) 9
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Answered by
1
Answer:
ANSWER IS 9
OPTION (D)
Step-by-step explanation:
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Answered by
1
Answer:
First we need number of terms in the series.
It is an arithmetic progression.
First term =1 . Common difference =2.
1 + (n-1) * 2 = 53.
》 2*(n-1) = 52.
》 n = 27.
Sum of natural odd number series
= n ^ 2
= 27^2.
Cube root = (27^2) ^(1/3)
=3 ^ ( 3 * 2 * 1/3 )
=3^2
=9.
Step-by-step explanation:
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