Trigonometry

posted by .

1. If tanθ = –√3 , what is the value of cot ?

2. Find the value of 3sec2.4. (Round to the nearest tenth.)

14.if sinθ = -4/5 and tanθ = -4/3, what is

  • Trigonometry -

    cot = 1/ tan

    2.4 degrees or 2.4 radians ?

    sin = -4/5 so in quadrant 3 or 4
    tan is negative so in quadrant 4
    hypotenuse = 5
    opposite = 4
    adjacent = 3
    so cos theta = 3/5
    and theta = -53.1 or -.93 radians

  • Trigonometry -

    1. -1/√3
    2. Is the 2.4 in radians?
    14. The question is incomplete.
    Theta is in the fourth quadrant, sin^-1 4/5 below the +x axis.

  • Trigonometry -

    1.) 1/root 3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    Prove the following identities: a) (cosec θ + cotθ)(cosecθ - cotθ) = cotθtanθ b) 2/(1 + sinθ) + 1/(1- sinθ) = (3sec^2)θ - tanθcosecθ I basically just have to prove Left HandSide …
  2. trigonometry

    if cosθ=2/3 and tanθ<0 find the exact value sin(θ-5π/3) sin2θ cos2θ cos(θ/2) can some1 please help me?
  3. math trigono

    1. If tanθ = –√3 , what is the value of cot ?
  4. Trigonometry

    1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two decimal places. 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y 10.Prove that 1+tanθ/1-tanθ = sec^2θ+2tanθ/1-tan^2θ 17.Prove that …
  5. Math (Trigonometry)

    θ is an acute angle such that tan(θ) = 12. What is the value of 5√5⋅(sinθ+cosθ)?
  6. Math (Trigonometry)

    θ is an acute angle such that tan(θ)=1/4. What is the value of 17√17*(sinθ+cosθ)?
  7. Trig

    Given that tan θ = - (√3/8) and θ is in QII, find the exact value of a. r = b. csc θ c. cos θ d. cot θ
  8. Trig

    Given that csc θ = -4 and tan θ > 0, find the exact value of a. x b. sin θ c. cos θ d. r e. sec θ f. cot θ
  9. Trigonometry

    Could someone please help me with the following q's I'm having some trouble: 1.) cot θ (theta) = 0.791, find sec θ and tan θ 2.) tan θ = 9/40, what is the value sin^2θ + cos^2θ
  10. Precalc/Trig

    Sorry there are quite a few problems, but I just need to know if these are correct (and if they aren't, where I went wrong): 1. Solve these equations. tanθ = -√3 θ = 2π/3 + kπ θ = 5π/3 + kπ …

More Similar Questions