The correct rectangular equivalence of 3sqrt(2)·cis(7pi/4 ) is:
3sqrt(2)·cos( 7pi/4 ) + i·sqrt(2)·sin( 7pi/4 ) = 3 - 3i.
<h3>Where did David go wrong?</h3>
David mistakenly interchanged the Sin function and the Cos function when he was calculating the problem.
Hence the correct rectangular equivalence is:
3sqrt(2)·cos( 7pi/4 ) + i·sqrt(2)·sin( 7pi/4 ) = 3 - 3i.
<h3>What is rectangular equivalence?</h3>
An equation is rectangular in form when it is comprised of Variables like X and Y and can be represented on a Cartesian Plane.
Learn more about rectangular equivalence at:
brainly.com/question/27813225
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The solution set for the given inequality is 
<u>Given the following inequality:</u>
<h3>What is an inequality?</h3>
An inequality can be defined as a mathematical relation that is typically used to compare two (2) integers or variables in an equation by illustrating any of the following:
- Greater than or equal to the other (≥).
- Less than or equal to the other (≤).
Simplifying the inequality, we have:
Read more on inequality here: brainly.com/question/24372553
Answer:
plot the numbers
Step-by-step explanation:
x-2 > 15 , bc yeah so yeah
