Monday

October 20, 2014

October 20, 2014

Posted by **Anonymous** on Sunday, September 23, 2012 at 2:19am.

f(x) = sin 2x − 2 sin x

at which the tangent line is horizontal. (Enter your answers as a comma-separated list. Use n to represent any integer.)

- calculus -
**Steve**, Sunday, September 23, 2012 at 7:43amtangent is horizontal when f'(x) = 0

f'(x) = 2cos2x - 2cosx

f'(x) = 0 when x = 2k*pi or 2k*pi +/- 2pi/3

for all integers k

**Answer this Question**

**Related Questions**

maths - Find the x-coordinates of all points on the curve y=2sin-sin^2x at ...

calculus - Given the curve defined by the equation y=cos^2(x) + sqrt(2)* sin(x) ...

calculus - Find the points on the curve below at which the tangent is horizontal...

calculus - Find the points on the curve y= (cos x)/(2 + sin x) at which the ...

Calculus - Consider the curve y^2+xy+x^2=15. What is dy/dx? Find the two points ...

Calculus - Find all points on the graph of the function f(x) = 2 sin(x) + (sin(x...

Calculus - Find all points on the graph of the function f(x) = 2 sin(x) + (sin(x...

calculus - 1. Consider the function f(x) = X^(4/3) +4x^(1/3) on the interval -8...

calculus - 1. Consider the function f(x) = X^(4/3) +4x^(1/3) on the interval -8...

Calculus - Use the given equation to answer the following questions. (Enter your...