posted by .

Hey I am doing test corrections and need help,
Which of the following inverse functions are defined for x=-1/2 ? Select all that apply.
Y=tan^-1 x
Y=cos^-1 x
Y=sin^-1 x
Y=csc^-1 x
Y=sec^-1 x
Y=cot^-1 x

  • Trig. -

    since |sec(x)| and |csc(x)| are both greater than 1, there is no angle x such that
    sec(x) = -1/2 or csc(x) = -1/2

    The rest are either always between -1 and 1 or have infinite range.

Respond to this Question

First Name

School Subject

Your Answer

Similar Questions

  1. more trig.... how fun!!!!

    if you can't help me with my first question hopw you can help me with this one. sec(-x)/csc(-x)=tan(x) thanx to anyone who can help From the definition of the sec and csc functions, and the tan function, sec(-x)/csc(-x) = sin(-x)/cos(-x) …
  2. Trig

    Find the exact values of the six trigonometric functions 0 if the terminal side of 0 in standard position contains the points(-5,-4). (0 is not the number zero I don't know what its called) I have to find r first. r=sqrt x^2+y^2 r=sqrt …
  3. Math

    Which of the following are inverse functions?
  4. math (repost)

    Which of the following are inverse functions?
  5. Math - Trig

    I'm trying to verify these trigonometric identities. 1. 1 / [sec(x) * tan(x)] = csc(x) - sin(x) 2. csc(x) - sin(x) = cos(x) * cot(x) 3. 1/tan(x) + 1/cot(x) = tan(x) + cot(x) 4. csc(-x)/sec(-x) = -cot(x)
  6. Trigonometry

    Use the trig Identities to find the other 5 trig functions. Problem 7.)Tan(90-x)=-3/8 8.)Csc x=-13/5 9.)Cot x=square root of 3 10.)Sin(90-x)=-.4563 11.)Sec(-x)=4 12.)Cos x=-.2351 I need HELP!
  7. Trigonometry

    Please review and tell me if i did something wrong. Find the following functions correct to five decimal places: a. sin 22degrees 43' b. cos 44degrees 56' c. sin 49degrees 17' d. tan 11degrees 37' e. sin 79degrees 23'30' f. cot 19degrees …
  8. trigonometry repost

    Reduce (csc^2 x - sec^2 X) to an expression containing only tan x. (is this correct?
  9. Precalculus

    Circle O below has radius 1. Eight segment lengths are labeled with lowercase letters. Six of these equal a trigonometric function of theta. Your answer to this problem should be a six letter sequence whose letters represent the segment …
  10. Precalculus

    Which of the following are trigonometric identities?

More Similar Questions