(3 + i)^2 * (1 - 2i)^2
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( 1 + 2i)^2 * ( 1 - 2i)^2
Let's work on the denominator first.
((1 + 2i)(1 - 2i))^2
(1 - 4i^2)^2
(1 + 4)^2
25
now work on the numerator which does not look very nice.
((3 + i)(1 - 2i))^2
(3 - 6i + i - 2(i)^2 )^2
(3 - 6i + i + 2)^2
(5 - 5i)^2
25(1 - i)^2
25(1 - 2i + i^2)
25 (-2i)
-50i
Now put the two parts together
-50i / 25 = - 2i
There might be a shorter way to do this, but I don't know what it might be.
Answer/Explanation:
When you change the slope, it will affect the steepness of the graph/line.
When you change the y-intercept (b) it will affect where the graph crosses the y axis.
-increasing the y-intercept will make the graph move up and
decreasing will make the y-intercept go down.
Answer:
1) The original price is 8920 2) The mark up is 580
Step-by-step explanation:
!)We need to find out the initial price, suppose it is equal to 100 percents. The price was raised and it has reached 100+6.5= 106.5 percents . 106.5 percents from initial price is the new price (RM 9500). Find out the value of one percent
9500:106.5= 89.2 (approximately).
2)Then find the original price multiplying the value of percent by 100. 89.2*100= 8920 - initial price
3)Then mark up is a remainder between old price and new price . It is 9500-8920= 580.
it means that the length is 5 times the width
