Answer:
C is the right answer I think
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.
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Answer:

Step-by-step explanation:
Find the LCM of the denominators and then solve:


Step-by-step explanation:
4+2+2+4+5 - 17
in nearest ten - 100 but i am not sure
The value of y in
is 6/7
<h3>How to solve for y?</h3>
The equation is given as:

Open the bracket
-3 = 7y - 9
Add 9 to both sides of the equation
7y = 6
Divide both sides by 7
y= 6/7
Hence, the value of y in
is 6/7
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<u>Complete question</u>
Solve for y
