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3 years ago

Please help me (6 + 8i)(4 - 7i)

Mathematics

2 answers:

Tema [17]3 years ago

7 0

(6+(8 * i)) * (4- (7 * i))=
80 - 10i

katovenus [111]3 years ago

5 0

The answer would be, (using FOIL method)
80-10i
Hope this helps!

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What is the following product? 3sqrt4 times sqrt3

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Answer:

$\sqrt[6]{432}$

Step-by-step explanation:

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kompoz [17]

Answer:

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Step-by-step explanation:

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2 years ago

Find the first four terms of the sequence given by the following. aₙ=43-3(n-1) n=1,2,3. . .

Serggg [28]

Given :-

The general term of a sequence is given by aₙ=43-3(n-1) .

To Find :-

The first four terms of the sequence.

Solution :-

The given expression is $/$

→ aₙ=43-3(n-1)

where n > 0

Finding the first term :

Substituting n = 1 , we have ,

→ T1 = 43 - 3(1-1)

→ T1 = 43 - 3*0

→ T1 = 43 - 0 = 43

Finding the second term :

Substituting n = 2 , we have,

→ T2 = 43 -3(2-1)

→ T2 = 43 -3*1

→ T2 = 43 -3 = 40

Finding the third term :

Substituting n = 3 , we have,

→ T3 = 43 -3(3-1)

→ T3 = 43 -3*2

→ T3 = 43 -6 = 37

Finding the fourth term :

→ T4 = 43 -3(4-1)

→ T4 = 43 -3*3

→ T4 = 43-9 = 34

Hence the first four terms of the sequence are 43 , 40 , 37 and 34 .

I hope this helps . Let me know if you need further clarification .

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2 years ago

Solve 2x - 8 + 3x > 5x - 4 also if you can plz explain

WITCHER [35]

Answer:

No solution

Step-by-step explanation:

2x - 8 + 3x > 5x - 4

2x + 3x - 8 > 5x - 4

5x - 8 > 5x - 4

-5x +8 > -5x +8

----------------------

0x > 4

This is no solution, as there is no 'x' value.

(0x just means there isn't anything left, I put that in order to show there wasn't anything.)

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3 years ago