Math Help

Hello! Can someone please check and see if I did this right? Thanks! :)

Directions: Find the exact solutions of the equation in the interval [0,2pi]


My answer:


  1. 👍 0
  2. 👎 0
  3. 👁 114
asked by Maggie
  1. that is not an answer. It is a restatement of the problem, using only sines.

    2sin^2x-sinx-1 == 0
    (2sinx+1)(sinx-1) = 0
    sinx = -1/2 or 1, so
    x = π/2, 4π/3, 5π/3

    1. 👍 0
    2. 👎 0
    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. general science

    What are the four main directions? Check this site for the four cardinal (main) directions.

    asked by amanda on March 6, 2007
  2. math, correction plz

    Can someone correct these for me.PLZ Problem#1 Directions solve equation ãx+4 = 3 My answer: x = 5 Probelm #2 Directions solve equation ã(4x+1) + 3 = 0 My answer x = 2 Problem #3 Directions solve equation ã(2y+7)+4=y My

    asked by jas20 on March 24, 2007
  3. Calculus

    I've been trying to figure this out but I can't seem to find the correct answer... DIRECTIONS: Find the points of intersection of the groups of the equations, and check your results analytically. QUESTION 1: 2x - 3y = 13 5x + 3y =

    asked by C on September 10, 2007
  4. English

    procedure: Formative Test Now. let's check how well you can use the expressions you've learned. I will distribute handouts. You should pick up a handout on the table. You have to fill in the blanks with suitable expressions. Are

    asked by John on June 9, 2008
  5. Geometry/Math

    Could you check this Directions: Given the coordinate of one endpoint of AB and its midpoint M, find the coordinates of the other endpoint. 1. A(0,9), M(2,5) X 2-(0)= 2 Y 5-9= -4 M (2,5)+(2,-4) A= (4,1)

    asked by Chrissy on August 24, 2009
  6. chemistry

    I read in a book that gas particles move rapidly in all directions. Somehow I find that random directions is better.The word "all" sounds a bit weird. What do you think?

    asked by anne on February 9, 2009
  7. Math

    Hi! So I asked about this question earlier and I've been trying to solve it with the directions I was given by someone before, but, I'm still confused and keep getting weird numbers. Can someone help me with this? Directions: Find

    asked by Heather on February 20, 2015
  8. math,correction

    Is this correct or no. I need help in a couple of problems can someone explain them to me. Problem#1 directions: Factor each expression a^2(b-c)-16b^2(b-c) My answer is: (b-c)(a-4b)(a+4b) PROBLEM#2 dIRECTIONS: Find a value for k

    asked by jas20 on February 24, 2007
  9. English

    I need one student to come up here to act out the tree pose. Who can do the tree pose in front of the classmates? OK. Come up here. Be seated on the chair. You should do as you are told. You should folow my directions. Stand up.

    asked by rfvv on May 16, 2017
  10. English

    stage directions are one element of a drama in a paragraph, define and provide an example of stage directions from "A surprising point of view". then analyze the stage directions. explain how these directions contribution to your

    asked by Alex on May 30, 2017
  11. language arts

    Stage directions are one element of a drama. In a paragraph, define and provide an example of stage directions from A Surprising Point of View. Then analyze the stage directions. Explain how these directions contribute to your

    asked by kazHmiEr on May 30, 2016

More Similar Questions