SATHEE: Complex Numbers And Quadratic Equations question 471

Complex Numbers And Quadratic Equations question 471

Question: Let $ \alpha $ and $ \beta $ be two roots of the equation $ x^{2}+2x+2=0, $ then $ {{\alpha }^{15}}+{{\beta }^{15}} $ is equal to $ -{{(2)}^{k}}, $ then k is

Solution:

Answer: 8

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Complex Numbers And Quadratic Equations question 471

Question: Let $ \alpha $ and $ \beta $ be two roots of the equation $ x^{2}+2x+2=0, $ then $ {{\alpha }^{15}}+{{\beta }^{15}} $ is equal to $ -{{(2)}^{k}}, $ then k is

Solution:

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