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1. ### Find the area of the region enclosed by the inner loop of the curve.  r = 6 + 12 sin(θ)?

Let r = 0 6 + 12sin(θ) = 0 sin(θ) = -1/2 In one cycle,θ = 7π/6 or θ = 11π... of integration. The radius is negative through that interval, but r will be squared, so that is not an issue. area = ∫[7π/6,11π/6...

3 Answers · Science & Mathematics · 03/11/2019

2. ### If R = 2.400 ± 0.003, what is the relative uncertainty for R−2? Plz also provide explanation/solution.?

...you could THEN turn into a fraction. ie ( 2.4 + 0.003)^(-2) < R^(-2) < (2.4 - 0.003)^(-2) 0.173178 < R ^(-2...

4 Answers · Science & Mathematics · 08/09/2019

3. ### Prove that R is an equivalence relation.?

...of an equivalence relation. It has 3 parts. A relation, R, is an equivalence relation if the relation is: 1. Reflexive, (x...

1 Answers · Science & Mathematics · 13/06/2019

4. ### What have you learned in R&S?

According to what I've seen in R&S: (1) Some folks are witty. (2) Some ...

14 Answers · Society & Culture · 28/02/2020

5. ### (pre Calculus) For both nPr (permutations) and nCr (combinations), n ≥ r. Explain why is that true?

Look at the definitions nPr = n! / (n - r)! If r > n, then you have the factorial of a negative number, which isn't defined.

2 Answers · Science & Mathematics · 29/05/2020

6. ### A ball of mass 300 gram is whirled on the end of a string in a horizontal circle of radius r = 0.450 m at a constant?

What is the reference frame for the angle? I'll assume that it is measured from vertical tanθ = (v²/r) / g = v² / rg v² = rgtanθ  v² = 0.450(9.81)tan25 v² = 2.0585 v = 1.43 m/s

1 Answers · Science & Mathematics · 08/12/2019

7. ### What r his intentions?

He is a male, so of course he's interested in more than friendship.

1 Answers · Society & Culture · 13/12/2019

8. ### R&S.  Is this where the magic happens?

Hocus Pocus and alakazam! Welcome, welcome to the R & S clan.

5 Answers · Society & Culture · 13/03/2020

9. ### Do you trust in R&S answers?

I think I am good at determining genuine questions and answers from frivolous/troll/sarcastic ones , but I don't assume the serious ones are necessarily accurate, even if I accept the  poster to be sincere.

7 Answers · Society & Culture · 11/05/2020

10. ### What are the main themes published in R&S?

Ignorance, intolerance, and hate.

9 Answers · Society & Culture · 13/03/2020