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KB

Diamond Member
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Everything posted by KB

  1. Yeah i got here late but work backwards that went 1000, 900, 800, 700, 600, 500, 400, 300, 200..........so no surprises that the answer is 100. Ken
  2. An application of the calculator thought experiment (CTE) Ý tells us that x sin x is a product; y = (x)(sin x). Therefore, by the product rule, dy dx = (1)(sin x) + (x)(cos x) = sin x + x cos x Recall from Section 2 that y = cosec x = 1 sin x . Therefore, by the quotient rule, dy dx = (0)(sin x) (1)(cos x) sin2x (recall that sin2x is just (sin x)2) = cos x sin2x = cos x sin x . 1 sin x = cotan x cosec x. (from the identities in Section 2) Notice that we have just obtained the derivative of one of the remaining five trigonometric functions. Four to go... © Since the given function is a quotient, dy dx = (2x+1)(sin x) (x2+x)(cos x) sin2x , and let us just leave it like that (there is no easy simplification of the answer). (d) Here, an application of the CTEÝ tells us that y is the sine of a quantity. Since d dx sin x = cos x, the chain rule (press the pearl to go to the topic summary for a quick review) tells us that d dx sin u = cos u du dx so that d dx sin (3x21) = cos (3x21) d dx (3x21) = 6x cos(3x21) So.......ahh........12 Ken Edit.......see what happens I give you my working out like every good boy should and jtb beats me
  3. Hey I'm not gay!................but I f**ked a guy that was Ken
  4. Ohh.........looky.............homophobe Ken
  5. KB

    You Guys....!

    Holy Mother of funbags Batman!!! Ken
  6. KB

    You Guys....!

    Ahh..........dunno.........maybe he sat on his haggis Ken
  7. It's cheaper to that both at the same time (fuel cost) but only a tight Scot would think of that Ken
  8. Have a great time Cray we will see you on your return Ken
  9. Squirrel what squirrel? I can't take my eye's off the size of the tropic crystal in that sub of yours Ken
  10. Yeah 'equal strength' is the kicker in this one Ken
  11. I'm sure you're right and I'm also sure there is a mathematical equation to prove it, but it's beyond me Ken
  12. We haven't had a lot of reviews on Daydate or Datejust so the best I can say is to keep looking at what the dealers have to offer. Ken
  13. My money is on Randy, seeing as he is reading this right now Ken Edit.........oops he posted before me too
  14. Well Kris a lot depends on how much you want to spend and what model you are after, there has been a lot of good reports about PT's ultimate sub for instance. Ken
  15. And to reply to your thread is exactly what I am going to do! Pug that is a superb guide you have posted, but the movie format was just a touch of excellence Ken
  16. Ok this sounds to obvious but...........................2 metres?
  17. I'm surprised that Trusty didn't have any Channel, did you look for J12? Also PP 24 is a nice ladies watch which I think most of the dealers carry and then there's Chopard. Ken
  18. Um...why not just 'Under' Ken Edit to add.................I'm a numbnut...............I just read the question again
  19. I think you were right the first time. Ken
  20. Go away..................................please Ken
  21. Well don't hurry, you know all the sexy cheer leaders and all the free watches and...............well all............................................................................. ........................it's all a lie Ken
  22. Double bugger that stupid post was my Powermax post......................what a waste Ken
  23. Bugger I took off for a little while and missed a couple of questions
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