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CBSE Class 11-science Answered

7 sum
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Asked by lovemaan5500 | 17 Jul, 2018, 06:40: PM
answered-by-expert Expert Answer
The real  part is 
8,7,6....AP
for imaginary, real part should be 0
0=8+(n-1)(-1)
n=9
 
Img part is 6,4,2
for real, imaginary part should be 0
0=6+(n-1)(-2)
0=6-2n+2
n=4
Answered by Arun | 18 Jul, 2018, 11:37: AM

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