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  1. The inverse relation R ^-1 consists of the ordered pairs obtained by ... of B, so the pairs (2,2), (2,6), and (2,8) are in R .  3 divides 6, but no other element of B. So the pair (3,6...

    1 Answers · Science & Mathematics · 20/08/2020

  2. Total resistance of the branch on the right = 40 + R [1] Resistance of 30 ohms in parallel... = 75 * (30(40+ R )/(70+ R )) / (5 + 30(40+ R )/(70+ R )) * R /(40+ R ) [4] But...

    2 Answers · Science & Mathematics · 21/09/2020

  3. a) Given Integral I= ∫∫ R (+)A where R is the region in the xy-plane which lies below...

    1 Answers · Science & Mathematics · 19/07/2020

  4. Let (A,B) ∈ R and (B,C) ∈ R then A ⊆ B and B ⊆ C ⇒ A ⊆ C ⇒ (A, C) ∈ R   . .   .   R is transitive

    1 Answers · Science & Mathematics · 28/07/2020

  5. ...q  is always true if p is false, no matter the truth-value of q.  .. r .. s .. t . (~ r )^s .. r ^t . ((~ r ) ^ s) --> ( r ^ t...

    1 Answers · Science & Mathematics · 06/06/2020

  6. ...42 (21/4) * 2^(x) = 42 2^x = 42 * 4 / 21 2^x = 2 * 4 2^x = 8 x = 3 V = R / ( R [s] + r ) * V[dc] V / ( R * V[dc]) = 1 / ( R ...

    3 Answers · Science & Mathematics · 23/02/2020

  7. v = linear velocity in meters per second (m/s) r = radius in meters (m) ω [omega] = angular velocity in radians per second (rad/s) ω = v / r

    2 Answers · Science & Mathematics · 18/06/2020

  8. ...1-x² - y²). What are then the ranges for r & θ? The element of area is √( 1 +  (dz/dx)² + (dz/dy...

    2 Answers · Science & Mathematics · 08/07/2020

  9. x² + rx + 8 = (x + s)(x + 2) x² + rx + 8 = x² + sx + 2x + 2s x² + rx + 8 = x² + x(s + 2) + 2s s + 2 = r 2s = 8 s = 4 r = s + 2 = 6 check x² + rx + 8 = (x + s)(x + 2) x² + 6x + 8 = (x + 4)(x + 2) ok

    9 Answers · Science & Mathematics · 10/04/2020

  10. ...equation (x + 2)² + y² = r², Center = (-2, 0) and radius = r The circles are externally tangent, and thus Distance...

    3 Answers · Science & Mathematics · 19/07/2020

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