sec(- pi/3)-cot(- 5pi/4)?
404800
sec = (1/cos); cot = (1/tan) = (cos/sin)\n\ncos(-pi/3) = 1/2 \n\n1/1/2 = 2 = sec(- pi/3)\n\ncos(-5pi/4) = -sqrt(2)/2 ;      sin(-5pi/4) = sqrt(2)/2\n\n(-sqrt(2)/2)/(sqrt(2)/2) = -1 = cot(- 5pi/4)\n\n2 - (-1) = 3 There's your answer.
776748
sin(3pi/4)= 1/sqrt(2) = sin(pi/4) \ncsc(3pi/4)=csc(pi/4) = sqrt(2)\nacsc(sqrt(2))=pi/4\n\n4pi/3 just doesn't work.
829346
Whenever you want to use the pi value simply write Math.PI:\n\nclass MathFun\n{\n  private double far = ((double)5/9); // (5/9)\n  private double cel = ((double)9/5); // (9/5)\n  private double vol = ((double)4/3); // (4/3)\n    \n  public MathFun ( ) { }\n    \n  double fToC (double F)\n  {\n    double celsius = 5 * (F - 32) / 9;\n    return celsius;\n  }\n    \n  double cToF (double C)\n  {\n    double fahrenheit = 9 * (C + 32) / 5;\n    return fahrenheit;\n  }\n    \n  double calcSphere (double r)\n  {\n    double vol = 4/3;\n    double sqr = Math.pow(r,3);\n    double volume = vol * Math.PI * sqr;\n    return volume;    \n  }\n}\n\nRegards
1185159
I think it is \nf(s)=√(pi/s)\n\nBy the way how do you do the sign for the sqrt?\nI still cant figure it out.\nI can do it in MS Word but when I copy into the the Firefox I get anything, but what I desire.\n\nIt is getting late, very late\n\nI'm running 2000. \nThank you Scott\nand \nnwohiosteve  thank you for the hint. My memory is refreshed.\npress ALT, ASCII  number , reliese ALT works
466006
Pick a few easy points like pi/2, pi, 3pi/2, 2pi.  You know the period.  Then just graph it.
4519
(4/3)*pi*r^3\n\n[four thirds pi r cubed]\n\ngood luck!
594682
v=4/3pi x R^3\n4/3 pi x 512\n4.17 x 512\n2,138.21 mm-cubed
644332
The website below has an image of the Pi symbol.\n\nHope this helps.
496307
Tf = 9/5 Tc + 32\n\nor \n\nTf = (1.8)Tc + 32
567475
I get 8/pi as well.\ndivide up into cylinders each element 2pixsin(pix/2)dx integrate by parts gives:\n(-4cos(pix/2))+((8/pi)sin(pix/2))evaluated at 1 and zero.\nonly nonzero term is rhs at 1 which gives 8/pi.
924113
sin(pi/7)*sin(2pi/7)*sin(3pi/7)\nsin (pi/7) = sin (0.45 radians) =.4350\nsin (2pi/7)=  sin(.88 radians) =.771\nsin(3pi/7)=sin(1.35 radians) = .976\nThus the abswer is .435*.771*.976=.327
375577
Well you really can't use a half angle identity unless you have a function in from of the angle.\n\n19pi/12 equals 285 degrees, just FYI.
908965
the answer is pi 3.14. use the pythagoran therom with x= pi(r2) then compensate for the remainder and it'll work itself out. If that doesn't work, try FOIL. first, outside, inside, last.
796906
too complicated to type it up, sorry. look up what other ways can sec^2x  be written, and start substituing those in. good luck
303735
Don't use 3.142.Use 22/7 as the value of Pi.Its "pi" not "pie".Pi=3.142 (approx.).In reality it goes into hundreds of decimal points without terminating.However "pi" is also equal to the fraction 22/7.If you have trouble with the decimals substitute the fraction as the value of pi-it is acceptable.This way it will be easier for you to calculate sums without a calculator.Pi is basically just the constant ratio that exists between the circumference and radius of any circle.C/R=22/7.
715504
Write it as  -1*(1+i). Now 1+ i = sqrt(2)/_pi/4 = sqrt(2) cis 45\nand multiplying it by -1 rotates it counterclockwise by pi.\nWhy? Because -1 = 1/_ pi = 1 cis 180.\nSo the answer is sqrt(2)/_5*pi/4 or sqrt(2) cis 225.\nHope that helps!
322159
Are you kidding me? Sin(x) is awesome! I totally love sinx-ing  those sexy numbers :)\n\nI sinxed pi the other day, and it totally melted away.