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Misha Larkins [42]
3 years ago
10

BRAINLIEST GOING TO THE FIRST ANSWER

Mathematics
2 answers:
Lesechka [4]3 years ago
5 0

Answer:

w + 2.3 > 18

Step-by-step explanation:

MARK ME BRAINLIEST!!!!!!!!!

Volgvan3 years ago
3 0

Answer:

w + 2.3 > 18

Step-by-step explanation:

hope this helped :)

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Prove that sin^4x + cos^4x= sinxcosx
yKpoI14uk [10]

Answer:

(the relation you wrote is not correct, there may be something missing, so I will simplify the initial expression)

Here we have the equation:

sin^4(x) + cos^4(x)

We can rewrite this as:

(sin^2(x))^2 + (cos^2(x))^2

Now we can add and subtract cos^2(x)*sin^2(x) to get:

(sin^2(x))^2 + (cos^2(x))^2 + 2*cos^2(x)*sin^2(x) - 2*cos^2(x)*sin^2(x)

We can complete squares to get:

(cos^2(x) + sin^2(x))^2 - 2*cos(x)^2*sin(x)^2

and we know that:

cos^2(x) + sin^2(x) = 1

then:

1 - 2*sin(x)^2*cos(x)^2

This is the closest expression to what you wrote.

We also know that:

sin(x)*cos(x) = (1/2)*sin(2*x)

If we replace that, we get:

1 - \frac{sin^2(2*x)}{2}

Then the simplification is:

cos^4(x) + sin^4(x)  = 1 - \frac{sin^2(2*x)}{2}

7 0
3 years ago
HELP PLEASE ASAP!! (10 pts)
Mandarinka [93]

Answer:

is there a question or picture?

8 0
2 years ago
Write each number in two equivalent forms 62.5%
Olegator [25]
Maybe 63 if you Estimate it

3 0
3 years ago
Read 2 more answers
Their are 5280 feet in 1 mile. How many inches are there in 4 miles
schepotkina [342]

Answer:

21120

Step-by-step explanation:Because you take 5280 and multiply it by 4

7 0
3 years ago
If x-7=14, then what is the value of x-2
Volgvan
If  x- 7 = 14 then X = 21. so 21-2= 19.      :)
4 0
3 years ago
Read 2 more answers
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