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dusya [7]
3 years ago
12

What is the solution set of x2 + y2 = 26 and x − y = 6?

Mathematics
1 answer:
Viefleur [7K]3 years ago
4 0
It works out that: y = 1 or 5 and therefore x = 5 or 1
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100 POINTS <br> Evaluate the derivative of the function number 38
patriot [66]

Answer:

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Step-by-step explanation:

f(x) = sin (tan^-1 (ln(x)))  

u substitution

       d/du (sin u)  * du /dx

            cos (u) * du/dx

Let u =(tan^-1 (ln(x)))     du/dx =d/dx  (tan^-1 (ln(x)))

v substitution

                                             Let v = ln x                dv/dx = 1/x

                                              d/dv  (tan ^-1 v)  dv/dx

                                                          1/( v^2+1) * dv/dx

                                                        =1/(ln^2x +1) * 1/x

Substituting this back in for  du/dx

cos (tan^-1 (ln(x))  * 1/(ln^2x +1) * 1/x

We know that cos (tan^-1 (a)) = 1/ sqrt(1+a^2)

cos (tan^-1 (ln(x))  * 1/(ln^2x +1) * 1/x

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8 0
3 years ago
Read 2 more answers
Which expression has exactly three terms? Select all the expressions that apply.
irga5000 [103]

The answer is expressions D, E, and G.

In algebra, a ‘term’ usually means the different parts of an expression that are separated by + and - signs.

Options A and B only have 1 term, an x or y³, so these are incorrect.

Option C has 1 term as well, ‘xyz’, because they are all multiplied together which makes it one term.

D and E both have 3 terms each, but F has 4 unique terms so this is incorrect also.

G has 3 unique terms, x³, x^4, and 7x, so this is correct.

When H is expanded, you will end up with more than 3 unique terms, so this is incorrect.

I hope this helps!

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3 years ago
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I need help with trig
Taya2010 [7]

Answer:

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7 0
2 years ago
Please Help Me With This Question
irina1246 [14]

Answer:

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Step-by-step explanation:

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Vladimir [108]

Answer:

1.5 hours

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