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4-1.Complex numbers
easy
${i^2} + {i^4} + {i^6} + ......$થી$(2n + 1)$ પદ સુધી =
A
$i$
B
$ - i$
C
$1$
D
$ - 1$
Solution
(d) Given expression is$ – 1 + 1 – 1 + 1 + …..$upto $(2n + 1)$ terms
Obviously number of terms is odd, so expression has the value $-1$.
Standard 11
Mathematics