Ask questions and get helpful responses.
Ask a New Question
  1. Questions

Pre-Calculus

Simplify arctan 1/3 + arctan 2/3(round to the nearest degree).

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Mary

  1. tan(arctan 1/3 + arctan 2/3)
    = (1/3 + 2/3)/(1-(1/3)(2/3)) = 9/7
    arctan(9/7) = 52.13°

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Trig

    A weight is oscillating on the end of a spring. The position of the weight relative to the point of equilibrium is given by y=1/12(cos8t-3sin8t), where y is the displacement (in meters) and t is the time (in seconds). Find the

  2. precal

    The values of x that are solutions to the equation cos^(2)x=sin2x in the interval [0, pi] are a. arctan(1/2) only b. arctan(1/2) and pi c. arctan(1/2) and 0 d. arctan(1/2) and (pi/2) e. arctan(1/2), o, and (pi/2)

  3. math

    cos(arcsin(x)+arctan(x))

  4. math

    Simplify by referring to the appropriate triangle or trigonometric identity: cos(arctan(x))

  1. Calculus

    The question is find the area of the reagion that is bounded by the curve y=arctan x, x=0, x=1, and the x-axis. So I've drawn the enclosed region. To find the area would I use the Disc/shell method? If so the formula that I came

  2. Rectangular coordinates to polar coordinates

    1) I'm asked to find 2 sets of polar coordinates for the point for 0≤ θ< 2pi from a given pair of rectangular coordinates . For instance, one of the coordinates was (-3,4). I found r = plus and minus 5.Then θ= arctan (y/x)=

  3. Calculus (Help please!)

    (Re-posting because I think the first one got lost in all the questions) This isn't a test or assignment, it's a review for studying. I'm trying to catch up in my lesson as I have fallen quite behind due to health issues. I'm here

  4. Calculus - HELP plz!

    Find all of the first partial derivatives of f(x,y,z)=arctan y/xz

  1. Math

    Transform arctan x + arctan y = pi/4 into algebraic expression A) x+xy-y = 1 B) x-xy-y = 1 C) x+xy+y = 1 D) x-xy+y = 1 Plsss help

  2. TRIGONOMETRY

    Evaluate the expressions: a) arctan(-sqrt(3)) a) Arctan(-sqrt(3)) So, I know how to find the answers with a calculator, but how do I find it step by step?

  3. Inverse trigonometric function

    How to solve without calculator 1. sin(arctan(12/5)) 2. cos(arccosx + arcsinx) Thanks. You have to know your right triangles. 5 12 13 is one. If the tan is 12/5, then the sin is 5/13. Draw a pic to confirm that. On the second:

  4. calculus

    h(x)= integral from (1, 1/x) arctan(2t)dt part 1: let U= 1/x and du= ? -> using u=1/x, we can write h(x)= integral from (1, 1/x) arctan (2t)dt as h(u)= integral from (1,u) arctan(2t)dt and h'(u)= arctan (2) Part 2: By the chain

Still need help? You can ask a new question.