SOLUTION: Express the function f(x)=5cos(2x)�-3sin(2x)� in the form f(x)=kcos(2x-α)�, where k>0 and 0≤α≤360

SOLUTION: Express the function f(x)=5cos(2x)�-3sin(2x)� in the form f(x)=kcos(2x-α)�, where k>0 and 0≤α≤360

Algebra.Com

Question 401136: Express the function f(x)=5cos(2x)�-3sin(2x)� in the form f(x)=kcos(2x-α)�,
where k>0 and 0≤α≤360
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!

Let and , where
is in the 4th quadrant.
Then

RELATED QUESTIONS
1. Express 3cos(x�)+5sin(x�) in the form kcos(x�-a�), where k>0 and 0≤a≤360 (answered by Edwin McCravy)

3. Express 3cos(x�)+5sin(x�) in the form kcos(x�-a�), where k>0 and 0≤a≤360 (answered by robertb)

The function f is defined for 0 ≤ x ≤ 360 f(x) = 3sin(2)x-1. i) State the... (answered by lwsshak3)

Find the average value of the function : F(x)=(e^2x)-(e^x) over0 ≤ x ≤... (answered by richard1234)

Find the average value of the function; : F(x)=(e^2x)-(e^x) over0 ≤ x ≤... (answered by robertb)

Find to the nearest degree, all values of X in the interval 0�≤X≤360� which... (answered by lwsshak3)

Solve 5 sec 2x + 7 = 0 for 0� ≤ x ≤... (answered by Alan3354)

f(x) = x2 + 7, 0 ≤ x ≤ 2 whats the domain of the... (answered by solver91311)

What is the range of the given function? f(x) = 1/2x + 5/2 if x ≤ -1 T -x... (answered by greenestamps)