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omeli [17]
2 years ago
13

Find the derivative of x³/tanx​

Mathematics
1 answer:
juin [17]2 years ago
7 0

Answer:

Below.

Step-by-step explanation:

We apply the quotient rule:

dy/dx = ( tanx * 3x^2 - x^3 * sec^2x)  /  (tan^2 x)

= x^2( 3tanx - xsec^2x) / tan^2x

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Ellie bought a pair of jeans on sale for 15% off. If the jeans were originally $35, how much did she save?
iragen [17]

Answer:5.25

Step-by-step explanation:

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3 years ago
Copies of a famous painting were created at the local art museum for visitors to purchase. The copies had a 30% smaller area tha
lina2011 [118]

Answer:

12.6 square feet

Step-by-step explanation:

So first we set it up:

18ft is 100% of the original

and the area of the copies are 70%

Copies: x

x/70 = 18/100

70(18) = 1260

1260/100 = 12.6

x = 12.6

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2 years ago
What are the missing reasons in the proof abcd with diagonal bd prove abd = cdb
Marta_Voda [28]
3) Definition of a parallelogram
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8 0
3 years ago
Read 2 more answers
A dog breeder plans to mix two types of food to make a mix of low cost
lys-0071 [83]

Answer:

  • 3.75 bags of ChowChow
  • 0.75 bags of Kibble

Step-by-step explanation:

The constraints on protein, minerals, and vitamins give rise to the inequalities ...

  40c +30k ≥ 150 . . . . . . required protein

  20c +20k ≥ 90 . . . . . . required minerals

  10c +30k ≥ 60 . . . . . . . required vitamins

And we want to minimize 10c +12k.

The graph shows the vertices of the feasible region in (c, k) coordinates. The one that minimizes cost is (c, k) = (3.75, 0.75).

To minimize cost, the daily feed should be ...

  • 3.75 bags of ChowChow
  • 0.75 bags of Kibble

Daily cost will be $46.50.

5 0
3 years ago
Evaluate the following expression for x = 4. <br><br><br> 1+3(x-1)-2x
xz_007 [3.2K]

Answer:

2

Step-by-step explanation:

1+3(x-1)-2x

Substitute the value of x into the equation:

1 + 3(4-1) -2 (4)

1 + 3(3)- 8

1 + 9 - 8

2

8 0
3 years ago
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