SOLUTION: Find the equation of the line tangent to the following curve at the given value of x. y = cos(2x); x = π/8

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Question 1158628: Find the equation of the line tangent to the following curve at the given value of x. y = cos(2x); x = π/8
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!






Evaluate:



Which is the -coordinate of the function at



Which is the slope of the tangent line at

Now, using the point-slope form of an equation of a line, write the desired equation:



You can do the appropriate calculations and simplifications for yourself.


John

My calculator said it, I believe it, that settles it