Given that . Show that is a real number . I know that when we need to show that a complex number is real , we need to show that s=s*(its conjugate) My question is how to find s* ??
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Originally Posted by hooke Given that . Show that is a real number . I know that when we need to show that a complex number is real , we need to show that s=s*(its conjugate) My question is how to find s* ?? Pay attention to the fact that , so: and we're done Tonio
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