The inve

**r**se**r**elation R ^-1 consists of the o**r**de**r**ed pai**r**s obtained by ... of B, so the pai**r**s (2,2), (2,6), and (2,8) a**r**e in R . 3 divides 6, but no othe**r**element of B. So the pai**r**(3,6...1 Answe

**r**s · Science & Mathematics · 20/08/2020Total 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 Answe

**r**s · Science & Mathematics · 21/09/2020a) Given Integ

**r**al I= ∫∫ R (+)A whe**r**e R is the**r**egion in the xy-plane which lies below...1 Answe

**r**s · Science & Mathematics · 19/07/2020Let (A,B) ∈

**R**and (B,C) ∈**R**then A ⊆ B and B ⊆ C ⇒ A ⊆ C ⇒ (A, C) ∈**R**. . .**R**is transitive1 Answe

**r**s · Science & Mathematics · 28/07/2020...q is always t

**r**ue if p is false, no matte**r**the t**r**uth-value of q. ..**r**.. s .. t . (~**r**)^s ..**r**^t . ((~**r**) ^ s) --> (**r**^ t...1 Answe

**r**s · Science & Mathematics · 06/06/2020...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 Answe

**r**s · Science & Mathematics · 23/02/2020v = linea

**r**velocity in mete**r**s pe**r**second (m/s)**r**=**r**adius in mete**r**s (m) ω [omega] = angula**r**velocity in**r**adians pe**r**second (**r**ad/s) ω = v /**r**2 Answe

**r**s · Science & Mathematics · 18/06/2020...1-x² - y²). What a

**r**e then the**r**anges fo**r****r**& θ? The element of a**r**ea is √( 1 + (dz/dx)² + (dz/dy...2 Answe

**r**s · Science & Mathematics · 08/07/2020x² +

**r**x + 8 = (x + s)(x + 2) x² +**r**x + 8 = x² + sx + 2x + 2s x² +**r**x + 8 = x² + x(s + 2) + 2s s + 2 =**r**2s = 8 s = 4**r**= s + 2 = 6 check x² +**r**x + 8 = (x + s)(x + 2) x² + 6x + 8 = (x + 4)(x + 2) ok9 Answe

**r**s · Science & Mathematics · 10/04/2020...equation (x + 2)² + y² =

**r**², Cente**r**= (-2, 0) and**r**adius =**r**The ci**r**cles a**r**e exte**r**nally tangent, and thus Distance...3 Answe

**r**s · Science & Mathematics · 19/07/2020