Q. Divide the following complex numbers.3−2i−3+15i
Multiply Numerators and Denominators: Now we multiply the numerators and the denominators separately.Numerator: (−3+15i)(3+2i)Denominator: (3−2i)(3+2i)
Expand and Combine Numerator: First, we'll expand the numerator using the distributive property (FOIL method).(−3)(3)+(−3)(2i)+(15i)(3)+(15i)(2i)= −9−6i+45i+30i2Since i2=−1, we replace 30i2 with −30.= −9−6i+45i−30
Expand and Combine Denominator: Now we combine like terms in the numerator.−9−30−6i+45i=−39+39i
Simplify Numerator and Denominator: Next, we'll expand the denominator using the distributive property. (3)(3)+(3)(2i)−(2i)(3)−(2i)(2i)=9+6i−6i−4i2Again, since i2=−1, we replace −4i2 with 4.=9+6i−6i+4
Divide Numerator by Denominator: Now we combine like terms in the denominator.9+4+6i−6i= 13
Final Simplified Form: We now have the simplified numerator and denominator.Numerator: −39+39iDenominator: 13We divide each term in the numerator by the denominator.(−39/13)+(39i/13)
Final Simplified Form: We now have the simplified numerator and denominator.Numerator: −39+39iDenominator: 13We divide each term in the numerator by the denominator.(−39/13)+(39i/13) Simplify each term.−39/13=−339i/13=3iSo the final simplified form is:−3+3i
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