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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 Γ— 𝑖^8 + i Γ— 𝑖^18 = i Γ— (𝑖2)^4 + i Γ— (𝑖2)^9 Putting i2 = βˆ’1 = i Γ— (βˆ’1)4 + i Γ— (βˆ’1)9 = i Γ— (1) + i Γ— (βˆ’1) = i – i = 0 = 0 + i 0

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