SOLUTION: As θ increases from pi/2 to pi radians, which of the following is true?
cosθ increases from 0 to 1.
tanθ decreases.
sinθ decreases from 1 to 0.
sin
Algebra.Com
Question 619876: As θ increases from pi/2 to pi radians, which of the following is true?
cosθ increases from 0 to 1.
tanθ decreases.
sinθ decreases from 1 to 0.
sinθ increases from 0 to 1.
None of these is correct.
the answer is the third one, but I dont understand why. I thought the first two were also correct?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
As θ increases from pi/2 to pi radians, cosθ decreases from 0 to negative 1.
Have a look at the unit circle and you'll see that the x coordinates are negative here.
So choice A is false.
As θ increases from pi/2 to pi radians, tanθ increases.
Again use the unit circle to see this.
So choice B is false.
RELATED QUESTIONS
Can you please help me! Thanks
As θ increases from π to 3/2π, which... (answered by ewatrrr)
Label each of the following statements as true or false.
The graph of y=cos (θ+... (answered by Theo)
Marty is proving that the following trigonometric identity is true:... (answered by Alan3354,ikleyn)
If 0<θ<π2, as θ increases, what happens to the value of cos θ... (answered by Fombitz)
2. For all θ where sin θ - cos θ ≠ 0, ((sin^2)(θ) -... (answered by solver91311)
Which of the following statements are true?
a) For θ ∈ ] π/2 , π [... (answered by stanbon)
Which of the following is a trigonometric identity?
a. cot θ + tan θ = 1
b.... (answered by ikleyn,fractalier)
Which of the following is a trigonometric identity?
a. cot θ + tan θ = 1
b.... (answered by fractalier,ikleyn)
The expression sin θ (cot θ - csc θ) is equivalent to?
A) 2 Cos θ
(answered by stanbon,lynnlo)