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  • 1. Precalculus homework<br />August 15, 2011<br />Simplify:<br />1. i62. i-19 3. i17764. i9+i-5<br />For each set of complex numbers:<br />(a) plot on a complex plane<br />(b) find the modulus of both<br />(c) find the distance between the two numbers<br />(d) find the midpoint between<br />(e) add them<br />(f) subtract the second from the first<br />(g) multiply them<br />(h) divide the first by the second using conjugates.<br /> 5.3+2i6.3-2i<br />-4+6i-4-i<br />7.1+7i8.5-i<br />-2-5i5+i<br />