🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Mathematics
1
answer
0
watching
241
views

if sin θ = 2 over 3 and tan θ < 0, what is the value of cos θ?


a) square root 5 over 2

b) negative square root of 5

c) square root of 5 over 3

d) negative square root of 5 over 3

Watch
1
answer
0
watching
241
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Hubert Koch
Hubert KochLv2
2 Apr 2020

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related questions

An object with weight W is dragged along a horizontal plane by a force acting along a rope attached to the object. If the rope makes an angle θ with the plane, then the magnitude of the force is, where μ a constant called the coefficient of friction.

(a) Find the rate of change of F with respect to θ.

(b) When is this rate of change equal to 0?

(c) If W = 50 lb, andμ = 0.6,draw the graph of F as a function of θ and use it to locate the value of θ for which Is the value consistent with your answer to part (b).

Example of each of the following:

   (a) A square root function that has been vertically stretched by a factor of 4, reflected in the y-axis, horizontally stretched by a factor or 2, and translated 3 units left and 5 units up.

3. (a) Let z be directly proportional to the square root of z. If 2 = 2 when r = 16, what is I when 2 = 7? [6] (b) Let x be inversely proportional to y?. If x = 6 when y = 2, what is a when y = 4?

Weekly leaderboard

Home
Homework Help 3,900,000
Mathematics 240,000
Start filling in the gaps now
Log in