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Ex 5.1, 2 - Express in a + ib: i9 + i19 - Class 11 Complex - Ex 5.1

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Ex5.1, 2 Express the given Complex number in the form a + ib: i9 + i19 𝑖^9 + 𝑖^19 = i × 𝑖^8 + i × 𝑖^18 = i × (𝑖2)^4 + i × (𝑖2)^9 Putting i2 = −1 = i × (−1)4 + i × (−1)9 = i × (1) + i × (−1) = i – i = 0 = 0 + i 0

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.