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Shkiper50 [21]
3 years ago
15

Find cotx if sinx cotx cscx = sqrt2

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0

Answer:

cot(x)=\sqrt2

Step-by-step explanation:

sin(x)cot(x)csc(x) = \sqrt2     , csc(x) = 1/sin(x)

sin(x)cot(x)(\frac{1}{sin(x)}) = \sqrt2

cot(x)=\sqrt2

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Explain how you know if an equation has one solution, infinitely many solutions, or no solution
lubasha [3.4K]
No solution would mean that there is no answer to the equation. It is impossible for the equation to be true no matter what value we assign to the variable. Infinite solutions would mean that any value for the variable would make the equation true. :)
8 0
2 years ago
The robots will be taking over ⅓ of the normal work. you have hired 4 robots. How much of the total work will they be doing?
Maru [420]

Answer:

they all as a group will be doing 1/3 of the work.  There are 4 robots.

how much will each individual robot be doing from the total work?

well, how many times does 4 go into 1/3?

Step-by-step explanation:

5 0
2 years ago
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A denotes an mn matrix. Determine whether the statement is true or false. Justify your answer. The row space of AT is the same a
ziro4ka [17]

Answer: true

Step-by-step explanation:

For an m*n matrix, the column space of A will be a space formed by the lineal combination of all the columns of A.

column space = a1*c1 + a2*c2 + ...

                       

where a1, a2, ... are scalars, and c1 is the vector of column 1.

Then we should write:

Column space = a1*(A₁₁, A₂₁, A₃₁, ...) + a2*(A₁₂, A₂₂, A₃₂, ...) + ...

Now, the transpose is defined as:

[At]₁₃ = A₃₁

Here i used the element with subindex 3 and 1, but is the same for every subindex.

Notice that if A is m*n, then [At] is n*m

Now, the row space of [At] will be, same as before.

Row space = b1*r1 + b2*r2 + ...

Where b1, b2, ... are scalars and the r's are the vector of each row.

                   = b1*( [At]₁₁ , [At]₁₂, [At]₁₃, ...) + b2*([At]₂₁, [At]₂₂, [At]₂₃, ...) + ...

Now we replace each term of the transpose by the associated element in the original matrix.

                   = b1*( A₁₁, A₂₁, A₃₁, ...) + b2*(A₂₁, A₂₂, ...) + ....

If we take:

b1 = a1, b2 = a2, b3 = a3, ...

We will have that the row space of [At] is the same as the column space of A.

4 0
2 years ago
The type of transformation PQRS undergoes is a . If vertex Q is at (-4, -5), then vertex Q′ is at ?
MissTica

Answer:

(-4, -5) it gives the answer in the question

Step-by-step explanation:

8 0
3 years ago
A cube has a surface area of 294 square cm. Find the length of one side.
DerKrebs [107]
Since a cube has 6 sides, we can divide 294 by 6, so we have the area of one side. Since it is a cube, we can just square root that, and you get 7 cm.
6 0
2 years ago
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