Find each sum or difference. Write each answer in standard form. 9. (10 + 8i) + (6 + 4i) = %3D 10. (9+ 5i) – (3 – 8i) = 11. (8 – 4i) + (3 – 3i) = 12. (9 – 7i) – (6 – 9i) = %3D Write each answer in standard form. Find each product. Write each answer in standard form. 13. (3- 5i)(6 + 7i) 14. (6 + 6i)(3 – 6i) = %3D 15. (7 – 7i)(10 – 5i) = %3D 16. (10 + 8i)(7 + 8i) = %3D %3D = {(19 +6)

Q: Find the product of (2+3i) and (5-4i).

A:

Q: Write the product as a sum: 18 cos(25v)cos(6v)

A:

Q: (8 – 3i)(-7 – 6i)

A:

Q: Find the product and write the result in standard form. 30 (9 +8 i)(5 - 5i) A) 85 - 5i B) 5 +85 i C)…

A: As per the request of the student both questions have been solved. This question can be solved using…

Q: Find the Sum (2 + 3i) + (3 + 4i)

A:

Q: (10 + 6i)( – 1 – 4i) =

A: Consider 10+6i-1-4i, Multiply the factors term-wise.…

Q: Write the sum as a product. cos 9x + cos 4x

A: Given,           cos9x+cos4xWe know that,        cosα+cosβ=2cosα+β2cosα-β2

Q: 7+5i/8i

A: Given that 7+5i/8i

Q: Determine the product of (1 + i) and (1–31) A) 4- 2i B) 2 + 4i c) 2- 2i D) 2-4i

A:

Q: ) = 2 и X=I1,I2 ... In

A:

Q: Startiha with the seometrre sertes Ž xn frnd the a) sum of the serles to

A:

Q: Write the sum as a product. cos(5x) – cos(9x)

A: cos5x-cos9x=-2sin5x+9x2sin5x-9x2=-2sin14x2sin-4x2

Q: Find the product:  4i(3 - 5i)

A: According to the question, we have to find the product of the expression 4i3-5i. The given…

Q: 3. Elizabeth tried to find the product of (2 +4i) and (3 - i), and her work is shown below. (2+…

A: To identify the error in the problem and to find the product of (2+4i)(3-i)

Q: Find each sum or difference. Write each an 9. (10 + 8i) + (6 + 4i) = 10. (9 + 5i) – (3 – 8i) = 11.…

A:

Q: Write the sum as a product: cos(24.2v) + cos(12.2v)

A: cosC + cosD = 2 cos (C+D)/2 × cos (C-D)/2

Q: Peform the Operation

A: Given complex number The standard form of a complex number is Where a is real part and b is an…

Q: Multiply (5 − 5i)(3 + 4i)

A:

Q: (8+4i)(8+4i)=

A: Given,(8+4i)(8+4i)now,(8+4i)(8+4i) = 8(8+4i)+4i(8+4i)

Q: (4– 2i) (2+5i)

A:

Q: Simplifica cada producto.(Simplify each product.) (7-10) 7) (4i – 3)(2i + 7) 8) 3i(2i? + 4) 9) (i –…

A: Since you have posted multiple subparts, as per our policy we will answer first three subparts.…

Q: What is the sum of 2 + 3i and -1 + 7i? A 1+ 10i 3 – 4i

A: here we want to add 2+ 3i and -1 + 7i

Q: Find the product.   ​[x−​(8+5i​)][x−​(8−5i​)]

A: Given ​[x−​(8+5i​)][x−​(8−5i​)] = [x-8-5i][x-8+5i] For multiplication we first multiply x with…

Q: Find the sum of each: E (2i + 1)

A: Given series

Q: find the product of (4-2i) and (4+3i)

A:

Q: 6 + 2i 3. 1 + 2i

A: 6+2i1+2i* 1-2i1-2i=10-10i5= 2-2i

Q: Determine the product of (1+i) and (1-3i)

A:

Q: 6)(3і — 2) (4i — 5)

A: Given,

Q: Find the value of the sum. 8 2 (7i – 6) i=4

A: Because i is from 4 to 8 so, we plug i=4,5,6,7,8 in the given expression and add them

Q: Find the value of the sum. 8i i=1

A: ∑i=1n 8i our series is  an=8n find the first 3 terms 8,16,24,... the first term is  a1=8 common…

Q: 之= 1+4i

A: Given: z=2+4i We know that if z=a+ib then z is given by z=a2+b2…

Q: Find the values for i1,i2 and i3

A:

Q: 8i−(15−4i)

A: The standard form of a complex number is given as,

Q: 6+7i a. 8-i

A:

Q: Find the sum or difference. Write in standard form.  (4-7i)+(-8+2i)+2i

A: We need to find the sum of the given complex numbers

Q: (12 + 7i + 4) i=1

A:

Q: Find the product: (5 + 4i)(6 - 7i).

A: Given: 5+4i6-7i

Q: 3. Let a = -4+ 9i and 7 – 4i. Write each each expression i а. а + b b. а — b с. аb

A:

Q: Multiply (4 - 5i)(4 + 5i).

A: To multiply: 4-5i4+5i. Solution: We have identity, a+ba-b=a2-b2 Using the above identity, we will…

Q: ) What is the product? (3 + 4i)(3 – 4i)

A:

Q: Evaluate Sigma7i=3 i^2 − √ i + 2      (i+2 is under the square root)

A:

Q: The product (6+2i)(4–3i) can be written as (1) 24– 6i (3) 2+5i (2) 18+10i (4) 30-10i

A: Given equation (6+2i)(4-3i)=6(4-3i)+2i(4-3i)  = 24-18i+8i-6i2  = 24-10i +6         [∴ i2= (-1)]  =…

Q: Find the products: a. 4i(3 - 5i)    b. (7 - 3i)(-2 - 5i).

A: The given expression is 4i3-5i   4i3-5i=12i-20i2=12i+20        i2=-1=20+12i

Q: Evaluate (4i)3 a) 84i b) -64 с) 64 d) -64i

A: Evaluate

Q: A. Perform the giv 1. ( 4+ iV3 ) (3 – 2i) 2. 4i ( ) (3+3i 3V3-2i 3. 2-iv3 120 5. 3(-

A: Explanation of the solution is given below...