That would be 8/7 or 1 1/7. Hope this helps! :)
Answer: The solution is k = -171.92.
Answer:

Step-by-step explanation:
We have given the equation y = 6 sin (x)
On differentiating both side 
As it passes through the point 
So 
Now the unit vector is parallel to the tangent so m will be 5.196
This passes through the point 
So unit vector will be 
