"1 is only the real number whose product with every number leaves the number unchanged."

Q: -6- Evaluate the expression and write the result as a complex V-8V-5 number.

A: This question is based on complex numbers.

Q: -4+8i/-9+3i

A: Given: -4+8i-9+3i To find: The simplified form of the given equation.

Q: Describe completely the  Development and application of complex number in Engineering.

A:

Q: 5x 1 х2-1 х-1 х+1

A: The solution is given below-

Q: negative numbers

A: Product of two negative number is a positive number. A positive number is always greater than a…

Q: Multiply the complex numbers 15+j4 and 12+j4

A:

Q: The square of any positive integer is greater than the integer. True or false

A: Given that The square of any positive integer is greater than the integer.

Q: simplify each complex fraction. (3 + 2/(n + 4))/(5 - 1/(n + 4))

A: Solution: Consider the complex fraction: 3+2n+45-1n+4 we have 3 + 2 = 5 5 -1 = 4 Then 3+2n+45-1n+4 =…

Q: Find the fifth roots of ( -128  + i)

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Q: Express −1+√−81 as a complex number −1+√−81

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Q: ZA =(2+i) -(2-i) 4 4 4

A: z4=(2+i)4−(2−i)4

Q: (-9 9-10i) (2-7i)

A: Simplification

Q: Solve for X. -9 13]-*-[33] 2X = -8 -8 9 -8 25] -2x 2X -2X X =

A:

Q: Find two real numbers whose sum is 12 and whose product is 32. 4 and 8 2 and 16 There is no answer

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Q: 4Q Express 2= (1+2i)² 7-i in the form a + ib where a and b are real numbers.

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Q: How many complex roots has the equation x⁷ + x⁴ - x² - 3 = 0

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Q: 2 +13 4-j2

A:

Q: Solve for X. X = -5 2 4 X + -2 = [2 -9 X.

A: Given: The equation is -5-5-24X+-2412=2-99-8X. The objective is to find matrix X. Concept Used: The…

Q: Write the number as a product of a real number and I Square root of -80

A: This question can be solved by applying the concept of a.b=a×b

Q: (a) Simplify i*+1 in real and imaginary parts.

A: As there are two questions given ,i only do the first.

Q: Plot the complex number and its complex conjugate. 9 - 6i Imaginary axis 10- 8

A: