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Harman [31]
2 years ago
11

Can someone help me with this

Mathematics
1 answer:
jeka57 [31]2 years ago
5 0

ANSWER: 0,1 my friend have a good day

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Integral of cosecx dx =log|tanx/2| show that.​
Pie

ANSWER:

Let t = logtan[x/2]

⇒dt = 1/ tan[x/2] * sec² x/2 × ½ dx

⇒dt = 1/2 cos² x/2 × cot x/2dx

⇒dt = 1/2 * 1/ cos² x/2 × cosx/2 / sin x/2 dx

⇒dt = 1/2 cosx/2 / sin x/2 dx

⇒dt = 1/sinxdx

⇒dt = cosecxdx

Putting it in the integration we get,

∫cosecx / log tan(x/2)dx

= ∫dt/t

= log∣t∣+c

= log∣logtan x/2∣+c where t = logtan x/2

7 0
2 years ago
Which of the following could be its equation?
mrs_skeptik [129]

So to solve problems like these you can work out each equation by substituting the x and y with the coords from the vertex (2,-4) and which ever one is true is the corresponding equation.

Lets try the first one

A) y = 2( x-2)^2-4    this would become

  -4 = 2(2-2)^2-4    we solve this and get

   -4 = 2(0)-4

   -4 = -4  

so it seems like A is the correct answer, of course we'd wanna check out the other answers just to be sure.

Lets try one and do C

C)  -2 = 2(-4-2)^2+2  

    -2 = 2(-8)^2+2

    -2 = 130

These aren't equal so this can't be our equation


So you can also do one more just to be super sure you have the right answer but I think A is the correct one :)



5 0
3 years ago
Make a conjecture about the sum of the first 54 positive even numbers
Bogdan [553]
Uhhhhhhhhhh i don’t really know
3 0
3 years ago
ASAP need help please
Akimi4 [234]

Answer:

A or B

Step-by-step explanation:

5 0
3 years ago
Using the Pythagorean Theorem, which two examples are right triangles?
eimsori [14]

Answer:

2 and 4

Step-by-step explanation:

7 0
3 years ago
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