Algebra2

Find the values of the inverse function in radians. 1. sin^-1(0.65)?
answer choices:

a. 0.71+2pi n and -0.71+2pi n
b. 0.71+2pi n and -3.85+2pi n
c. 0.86+2pi n and -0.86 +2pi n
d. -0.61+2pi n and 2.54+2pi n


My answer is B

  1. 👍 0
  2. 👎 0
  3. 👁 187
asked by Steve
  1. Nope. Those answers are in QI and QIV

    The solutions are in QI and QII:

    sin(.71) = .65
    so the solutions are

    .71 + 2nπ
    pi-.71 + 2nπ = 2.4 + 2nπ

    1. 👍 0
    2. 👎 0
    posted by Steve
  2. The primary solutions are
    .71 and π-.71
    or
    .71 and 2.43

    so I would state it as
    .71 + 2πn and 2.43 + 2πn , which is a variation of B

    so you are correct, but I find their choice puzzling
    (notice -3.85 + 2π = 2.43)

    1. 👍 0
    2. 👎 0
    posted by Reiny
  3. thank you

    1. 👍 0
    2. 👎 0
    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra 2

    Find the values of the inverse function in radians. sin^-1(0.65) a. 0.71+2pi n and -0.71+2pi n b. 0.71+2pi n and -3.85+2pi n c. 0.86+2pi n and -0.86 +2pi n d. -0.61+2pi n and 2.54+2pi n 2. tan^-1(0.09) a.-0.09+2pi n b. no such

    asked by Fading on May 21, 2017
  2. Math

    For questions 2 and 3, use a calculator to find the values of the inverse function in radians. sin^-1(0.65) 0.71 + 2pi n and –0.71 + 2 pi n 0.71 + 2 pi n and –3.85 + 2 pi n 0.86 + 2pi n and –0.86 + 2pi n –0.61 + 2pi n and

    asked by Harry on June 16, 2018
  3. Algebra2

    Find the values of the inverse function in radians. tan^-1(0.09) answer choices: a.-0.09+2pi n b. no such angle exists c.-1.48+ pi n d. -0.09+ pi n My answer is D

    asked by Steve on May 2, 2017
  4. Trigonometry

    Find the angular speed in radians per sec. of the second hand on a clock. My answer is 1 rpm =1*2pi radians/1minute(1 rotation = 2pi radians) =2pi radians/60seconds =1/30 radians/seconds It goes 2PI radians in 60 seconds. What

    asked by James on July 4, 2007
  5. inverse

    If f(x)=cosx + 3 how do I find f inverse(1)? Thanks y = cos(x) + 3 the inverse of this is x = cos(y) + 3 solve for y and you have your inverse The cos function only has a range of [-1,1], so the range of f(x) is [2,4]. this means

    asked by Jen on October 20, 2006
  6. calc

    i did this problem and it isn't working out, so i think i'm either making a dumb mistake or misunderstanding what it's asking. A particle moves along the x axis so that its velocity at any time t greater than or equal to 0 is

    asked by jane on April 2, 2009
  7. Calc

    Find the exact total of the areas bounded by the following functions: f(x) = sinx g(x) = cosx x = 0 x = 2pi I set my calculator to graph on the x-axis as a 2pi scale. The two functions appear to cross three times between x = 0 and

    asked by Sarah on April 21, 2007
  8. Calculus

    Consider the function f(x)=sin(1/x) Find a sequence of x-values that approach 0 such that (1) sin (1/x)=0 {Hint: Use the fact that sin(pi) = sin(2pi)=sin(3pi)=...=sin(npi)=0} (2) sin (1/x)=1 {Hint: Use the fact that sin(npi)/2)=1

    asked by George on September 9, 2008
  9. Calculus

    Consider the function f(x)=sin(1/x) Find a sequence of x-values that approach 0 such that (1) sin (1/x)=0 {Hint: Use the fact that sin(pi) = sin(2pi)=sin(3pi)=...=sin(npi)=0} (2) sin (1/x)=1 {Hint: Use the fact that sin(npi)/2)=1

    asked by George on September 9, 2008
  10. Trigonometry

    A wheel is rotating at 200 revolutions per minute .find the angular speed in radians per second. 200 rpm =200*2pi radians/1 minute (1 rotation = 2pi radians) = 400pi radians/60 seconds =20/3 radians/second You can follow the same

    asked by James on July 3, 2007

More Similar Questions