math

posted by .

1.) Find the solution set of
2sin squared θ-1= 0 if 180 degrees is less than or equal to θ is less than or equal to 360 degrees

2.) prove:

2cotθ/cot squared θ -1 = sin2 θ sec2 θ

  • math -

    2 sin^2 Ø = 1
    sin^2 Ø = 1/2
    sin Ø = 1/√2
    if 180 ≤ Ø ≤ 360°
    then Ø = 225° or 315°

    2.

    Did you mean:
    2cotØ/(cot^2 Ø - 1) = sin^2 Ø sec^2 Ø ?
    If so, then it is not and identity, (I tried it with Ø=20°)
    did you mean:
    2cotØ/cot^2 Ø - 1 = sin^2 Ø sec^2 Ø ?
    If so, then it is not and identity, (I tried it with Ø=20°)

    did you mean:
    2cotØ/cot^2 Ø - 1 = sin 2Ø sec 2Ø ?
    If so, then it is not and identity, (I tried it with Ø=20°)

    etc.

  • math -

    4^(x 1) - 6^x - 2.9^(x 1) = 0

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math - Calculus

    The identity below is significant because it relates 3 different kinds of products: a cross product and a dot product of 2 vectors on the left side, and the product of 2 real numbers on the right side. Prove the identity below. | a …
  2. 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 …
  3. Algebra

    Find the complete solution of each equation. Express your answer in degrees. sec^2 θ+sec θ=0 2 cos^2 θ+1=0 cot θ=cot^2 θ sin^2 θ+5 sin θ=0
  4. Algebra

    Find the complete solution of each equation. Express your answer in degrees. sec^2 θ+sec θ=0 2 cos^2 θ+1=0 cot θ=cot^2 θ sin^2 θ+5 sin θ=0
  5. Trigonometry

    There are four complex fourth roots to the number 4−4√3i. These can be expressed in polar form as z1=r1(cosθ1+isinθ1) z2=r2(cosθ2+isinθ2) z3=r3(cosθ3+isinθ3) z4=r4(cosθ4+isinθ4), …
  6. Complex angles

    There are four complex fourth roots to the number 4−43√i. These can be expressed in polar form as z1=r1(cosθ1+isinθ1) z2=r2(cosθ2+isinθ2) z3=r3(cosθ3+isinθ3) z4=r4(cosθ4+isinθ4), …
  7. 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
  8. precalc

    Solve. Give the answers in degrees so that 0° ≤ θ < 360°. 1) (5 cos θ - 1) / 2 = 1 answers: 53°, 127°, 233° 2) 3 cot (2θ) + 3 = 0 3) tan^2 θ + 2 sec^2 θ = 3 is my answer for #1 correct and i'm …
  9. Statistics

    θ=0.5 θ=1 θ=2 θ=3 λ = 2 θ = 0.5 μ = 0.5 σ = 0.5 θ=0.5 0 2 1 0.270670566 2 0.036631278 3 0.004957504 4 0.000670925 5 9.07999E-05 draw the graph for θ=1 θ=2 θ=3 The first θ=0.5 …
  10. Math (PLEASE HELP!)

    How do you solve sin2θ−cosθ=0 between -pi/2 less than or equal to θ less than or equal to 3pi/2?

More Similar Questions