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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

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
2075 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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