Answer:
4 + 10i
Step-by-step explanation:
Expanding the bracket we have;
(7+3i)-(3-7i) = 7+3i-3+7i
(7+3i)-(3-7i) = 7+3i-3+7i = 7-3 + 3i + 7i= 4 + 10i
Answer:
1.5 Liters
Step-by-step explanation:
4.5 / 3 = 1.5 or 1 and 2/4
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Answer:
B.less than 90 degrees
Step-by-step explanation:
Obtuse angle is greater than 90°
Since the sum of all 3 angles= 180°
The sum of other 2 angles less than 180°-90°= 90°