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Grade: 11

                        

Find the value of root (i) + root (-i). I solved this but I didn't understand why the imaginary value were not considered as per the answer to the question is given. It's urgent please help me out as soon as possible

2 years ago

Answers : (1)

Aditya Gupta
2065 Points
							
 root (i) + root (-i)= root (i) + 1/root(i) [because –i = 1/i, which implies root–i = root1/i]
=(i+1)/root(i)
we know that root(i)= ±(1+i)/root2
so, root (i) + root (-i)= ±root2
2 years ago
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