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goldfiish [28.3K]
3 years ago
11

Please helpsina×tga=1/2find cosa ​

Mathematics
1 answer:
ioda3 years ago
4 0

Step-by-step explanation:

hey you can come in my zoom

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The seats at a local baseball stadium are arranged so that each row has five more seats than the row below it. If there are 4 se
nordsb [41]

Givens:

a = 4; n = 23; d = 5

Formula

L = a + (n - 1)*d

Substitute and solve

L = 4 + (23 - 1)*5

L = 4 + 22*5

L = 4 + 110

L = 114 Answer

4 0
3 years ago
Make v the subject of the relation KE = ½mv²
Irina18 [472]

Answer:

v=\sqrt{\frac{2KE}{m} }

Step-by-step explanation:

KE = 1/2mv^2

KE/1/2=mv^2

2KE=mv^2

2KE/m=v^2

\sqrt{2KE/m} =v

7 0
3 years ago
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I have no clue how to do this! Find mAC
pickupchik [31]

Step-by-step explanation:

7.5 is an answer because it is example of cantral angle bisector of circle

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2 years ago
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express the limit as a definite integral on the given interval. lim n → [infinity] n ∑ i = 1 cos x i x i δ x , [ 2 π , 4 π ]
Lemur [1.5K]

The limit as a definite integral on the interval $\lim _{n \rightarrow \infty} \sum_{i=1}^n \frac{\cos x_i}{x_i} \Delta x$ on [2π , 4π] is $\int_{2\pi}^{4 \pi} \frac{\cos x}{x} d x$$.

<h3>What is meant by definite integral?</h3>

A definite integral uses infinitesimal slivers or stripes of the region to calculate the area beneath a function. Integrals can be used to represent a region's (signed) area, the cumulative value of a function changing over time, or the amount of a substance given its density.

Definite integral, a term used in mathematics. is the region in the xy plane defined by the graph of f, the x-axis, and the lines x = a and x = b, where the area above the x-axis adds to the total and the area below the x-axis subtracts from the total.

If an antiderivative F exists for the interval [a, b], the definite integral of the function is the difference of the values at points a and b. The definite integral of any function can also be expressed as the limit of a sum.

Let the equation be

$\int_a^b f(x) d x=\lim _{n \rightarrow \infty} \sum_{i=1}^n f\left(x_i\right) \Delta x$

substitute the values in the above equation, we get

= $\lim _{n \rightarrow \infty} \sum_{i=1}^n \frac{\cos x_i}{x_i} \Delta x$ on [2π, 4π],

simplifying the above equation

$\int_{2\pi}^{4 \pi} \frac{\cos x}{x} d x$$

To learn more about definite integral refer to:

brainly.com/question/24353968

#SPJ4

8 0
1 year ago
Need help ASAP!!!<br> WIll make you brainlist
astraxan [27]
ITS C I HAVE NO EXPLANATION BUT ITS C
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