doll1234
10.12.2021 •
Mathematics
Simplify the expression 2i(4.5 – 20i) + 3i. Write your answer in the form a + bi.
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Ответ:
3x+2+x+8=180; 4x+10=180; 4x=170; x= 170/4= 42.5
Angle on top is x+8=42.5+8=50.8
Angle on the bottom is 3x+2=3•42.5+2= 129.5