Find the critical numbers of the function. (Enter your answers as a comma-separated list.)h(x) = sin2(x) + cos(x) 0 < x < 2𝜋
Question
Find the critical numbers of the function. (Enter your answers as a comma-separated list.)
h(x) = sin²(x) + cos(x)
0 < x < 2𝜋
Solution
To find the critical numbers of the function h(x) = sin^2(x) + cos(x), we first need to find the derivative of the function.
The derivative of sin^2(x) is 2sin(x)cos(x) using the chain rule, and the derivative of cos(x) is -sin(x).
So, the derivative h'(x) of the function h(x) is:
h'(x) = 2sin(x)cos(x) - sin(x)
We can factor out sin(x) from the equation:
h'(x) = sin(x)(2cos(x) - 1)
The critical numbers are the solutions to the equation h'(x) = 0.
So, we set the equation to 0 and solve for x:
sin(x)(2cos(x) - 1) = 0
This gives us two equations:
sin(x) = 0 and 2cos(x) - 1 = 0
Solving these equations gives us the critical numbers.
For sin(x) = 0, the solutions in the interval 0 < x < 2π are x = π.
For 2cos(x) - 1 = 0, we get cos(x) = 1/2. The solutions in the interval 0 < x < 2π are x = π/3 and x = 5π/3.
So, the critical numbers of the function h(x) = sin^2(x) + cos(x) in the interval 0 < x < 2π are x = π, π/3, 5π/3.
Similar Questions
ow many inflection points does the function h(x) = x+cos(x) have in the interval [0, 2π]?A. 0B. 1C. 2D. 3E. 4
Find critical and stationary points f if f(x)=|sinx |.also find relative extrema
Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)f(x) = 3x4 + 8x3 − 48x2
Use the first derivative test to find the two critical points of the function. First point:
Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)F(x) = x4/5(x − 6)2x =
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.