Math

posted by .

Im really struggling with these proving identities problems can somebody please show me how to do these? I'm only aloud to manipulate one side of the equation and it has to equal the other side of the equation at the end

Problem 1. (1-tanx) = (cosx-sinx)/cosx

Problem 2. (secx+tanx)/(cscx-cotx) - (secx-tanx)/(cscx+cotx) = 2(secx+cscx)

  • Math -

    a. multipy the left side by cos/cos, you get
    (cos-sin)/cos

    b. on the left, get a common denominator
    (csc^2-ctn^2)
    then combine both terms into one fraction. It reduces rapidaly. If you get stuck convert all terms to sin, cos)

  • Math -

    Thanks! I feel stupid now that I didn't see that before, but I appreciate your help

  • Math -

    A pizza restaurant sold 275 veggie pizzas. It sold 71 more pepperoni pizzas than veggie pizzas. If each pizza cost $9,how much did the restaurant earn?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math, algebra

    can someone explain to me this please.... What is the difference between ax^2+bx+c and ax^2+bx+c=0 One is an expression and the other is an equation. (An equation uses an equals sign.) I hope this helps and is what you were asking. …
  2. Simplifying with Trigonometry Identities

    Hi, I am a senior in High School having a really difficult time with two problems. I have to prove using the trigonometric identities that they equal each other but I am having a really hard time trying to get them to equal each other. …
  3. Precalculus

    I've tried many times to get the equation to balance using trig identities like half-angle formulas, power-reducing formulas, and double angle formulas, but I couldn't get the equation to equal out. I only need to work one side to …
  4. Math

    Im really struggling with these proving identities problems can somebody please show me how to do these?
  5. Math

    Im really struggling with these proving identities problems can somebody please show me how to do these?
  6. Math

    I'm only aloud to manipulate one side of the problem and the end result has to match the other side of the equation Problem 1. sinx + cosx + sinx + tanx + cosxcotx = secx + cscx Problem 2. ((sinx + cosx)/(1 + tanx))^2 + ((sinx - cos^2x)/(1 …
  7. precal

    please help i can't find the answer for this question. i can only manipulate one side of the equation and the end result has to equal the other side. Problem 1. ((1 + sinx)/cosx) + (cosx/(1 + sinx)) = 2secx
  8. Math

    I can only manipulate one side of the equation and the end result should be equal to the other side. please help. ((sinx + cosx)/(1 + tanx))^2 + ((sinx - cosx)/(1 - cotx))^2 = 1
  9. Trigonometry

    I need help proving trigonometric identities. Most of my difficulty lies in actually factoring the equation. For example, one of the problems is (cos t - sin t)^2 + (cos t + sin t)^2 = 2. I have to prove that the left side is equal …
  10. math

    Heather is solving an equation by graphing the expressions on both sides. If her graph intersects at an infinite number of points, which statement could describe the equation Heather is attempting to solve?

More Similar Questions