assume

**r**is any numbe**r**. {**r**∈ ℝ } as x becomes sufficiently close to that numbe**r**, f(x) becomes a**r**bit**r**a**r**ily close to f(**r**). fo**r**example: say**r**= 7 which means: f(**r**) = f(7) as x app**r**oaches...1 Answe

**r**s · Science & Mathematics · 14/10/2013**R**=(ab)/(a+b)**R**(a+b) = ab Ra + Rb = ab Rb = ab - Ra Rb = a(b-**R**) a = (Rb)/(b-**R**)1 Answe

**r**s · Education & Reference · 01/11/2008**r**= 4 cscθ then**r**sinθ = 4. now,**r**cosθ = x, while**r**sinθ = y.... these a**r**e the equations needed to t**r**ansfo**r**m ca**r**tesian to pola**r**... thus you have y = 4. (a ho**r**izontal line) §1 Answe

**r**s · Science & Mathematics · 14/04/2008Let f:

**R**->**R**' be an isomorphism. If**R**is commutative, and a... of**R**', then a' = f(a) and b' = f(b) for some a,b in**R**. Then we have: a'b' = f(a)f(b) = f(ab) = f(ba) = f(b)f(a) = b'...2 Answe

**r**s · Science & Mathematics · 05/12/2012**r**^2+**r**=A/(2ph)? If so, then**r**^2+**r**-A/(2ph)=0=>**r**=[-1+/-sqrt(1+2A/(ph)]/2 =>**r**=[-1+sqrt(1+2A/(ph))]/2 or**r**=[-1-sqrt(1+2A/(ph))]/22 Answe

**r**s · Science & Mathematics · 20/09/2013Use the facts that sin(θ) = y/

**r**and**r**= √(x^2 + y^2). Fi**r**st, fo**r****r**= 3sin(θ):**r**= 3sin(θ)**r**= 3(y/**r**... is a ci**r**cle. In the subject line, I'll assume you mean**r**= sin(3θ) and not**r**= sin^3 (θ). You'll have to use a t**r**ig identity fo**r**...1 Answe

**r**s · Science & Mathematics · 19/05/2007**r**= 7(c - x)**r**/7 = 7(c-x)/7**r**/7 = c - x**r**/7 + x = c2 Answe

**r**s · Science & Mathematics · 16/02/2012(

**R**+ r )(**R**- r ) = A/pi**R**²-r² = A/pi <--- this is the difference of two squares method**R**² = A/pi + r²**R**= √(A/pi+r²)4 Answe

**r**s · Science & Mathematics · 26/04/2012- (

**R**-3 ) = 10 -**r**+3 = 10 -3 -3 --------------- -**r**=7 ----------- -1 -1**r**= -7 (**r**-3)=10 +3 +3 --------------**r**=13 {-7,13}2 Answe

**r**s · Science & Mathematics · 02/11/2011**r**= 2 / sin(t)**r*** sin(t) = 2 y = 2 x =**r*** cos(t) y =**r*** sin(t) x^2 + y^2 =**r**^22 Answe

**r**s · Science & Mathematics · 03/12/2017