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Byju's Answer
Standard XI
Mathematics
Sequence
Which term of...
Question
Which term of the sequence (-8 + 18i), (-6 + 15i), (-4 + 12i),....is purely imaginary
A
5
th
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B
7
th
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C
8
th
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D
6
th
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Solution
The correct option is
A
5
th
Given sequence is (-8 + 18i), (-6 + 15i), (-4 + 12i), (-2 + 9i), (0 + 6i),.....
Hence 5
th
term is purely imaginary.
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12
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Which term of the sequence (-8 + 18i), (-6 + 15i), (-4 + 12i),....is purely imaginary
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