Electrical Engineering - RC Circuits - Discussion
Discussion Forum : RC Circuits - True or False (Q.No. 2)
2.
Complex numbers can be added and subtracted but not multiplied or divided.
Discussion:
4 comments Page 1 of 1.
Puja said:
9 years ago
This answer is wrong because rectangular form for addition and subtraction and polar form for multiplication and divide.
Parth Dadhaniya said:
8 years ago
In complex numbers addition, substraction, multiplication and division are possible.
Parth said:
8 years ago
False : -
In complex numbers are addition, subtraction, multiplication and division.
For multiplication :
(a+ib).(c+id) = ac - bd + i(ad + bc).
For division :
(a+ib). (a+ib). (c-id)
(c+id). (c+id). (c-id)
= (ac + bd - i(bc - ad))
= (c2 + d2).
In complex numbers are addition, subtraction, multiplication and division.
For multiplication :
(a+ib).(c+id) = ac - bd + i(ad + bc).
For division :
(a+ib). (a+ib). (c-id)
(c+id). (c+id). (c-id)
= (ac + bd - i(bc - ad))
= (c2 + d2).
Rushi Gitte said:
5 years ago
Yes, for complex and Polar both we can do addition, subtraction, multiplications & division But for our simplicity it is easy to do the addition & subtraction in the complex form and multiplications & divisions in Polar form because it makes it simple to calculate.
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