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Gwar [14]
2 years ago
10

Prove that, for all positive values of n,

Mathematics
2 answers:
alekssr [168]2 years ago
7 0

\frac{(2n+3)^{2}-(2n+1)^{2}}{6n+6} \\ \\ =\frac{(4n^{2}+12n+9)-(4n^{2}+4n+1)}{6n+6} \\ \\ =\frac{4n^{2}+12n+9-4n^{2}-4n-1}{6n+6} \\ \\ =\frac{8n+8}{6n+6} \\ \\ =\frac{4(2n+2)}{3(2n+2)} \\ \\ =\frac{4}{3} \\ \\ \therefore \boxed{a=4, b=3}

max2010maxim [7]2 years ago
5 0

Answer:

vos te burlabas de mi

vos estás desgastado como un criminal sacado

exceso de flow

no se que será

que les paso?

sintieron un golpe en la nuca? ese fui yo..

siente tengo el estilo

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Please answer thanks!
EastWind [94]

Answer:

see explanation

Step-by-step explanation:

tan x = -1

x = tan^{-1}(-1)

x = -45

tan x = 5

x = tan^{-1}(5)

x = 78.69

7 0
3 years ago
Read 2 more answers
Simplify the expression the root of negative one all over the quantity of four minus three i minus the quantity of two plus five
svlad2 [7]
We will break this down into its parts:
We know that this is a fraction where the numerator is √(-1) = i
The denominator:
4 - 3i - (2 + 5i); we put 2 + 5i in brackets because we are to subtract its quantity.
Simplifying the denominator:
4 - 3i - 2 - 5i
= 2 - 8i
Now, we write the expression in fractional form:
i / (2 - 8i)
To remove an imaginary number from the denominator, we multiply and divide by its conjugate. The conjugate of a + bi is a - bi
i(2 + 8i) / (2² - (8i)²)
= (-8 + 2i) / (4 + 64)
= -2/17 + i/34
4 0
4 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
RoseWind [281]
Four spaces down: -4
Two spaces right: +2
 
So it will be (-4, 2)

6 0
3 years ago
Read 2 more answers
In a class 25% of students were absent for an exam ,30% failed by 20 marks and 10% just passed because of gracemarks of 5 . Find
Sati [7]

Answer:

6.5 students passed with 60 marks

Step-by-step explanation:

so 30% of 20 is 6 so when i did 10% of five ik its not honna work so i had to make it 50 and it came out at 0.5 so u add the two together u get 6.5

5 0
3 years ago
How many solutions does this system have?
amid [387]

Answer:

Infinite Number

Step-by-step explanation:

7 0
4 years ago
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