April B.

asked • 04/12/21

Find the equation of the line tangent to f(x)=cos^2x/7+sin^2(1/7x) at x=pi/6

Find the equation of the line tangent to f(x)=cos2x/7+sin2(1/7x) at x=π/6

Joel L.

tutor
Just want to make sure, is x/7 inside the cosine function or just the x? How about the 1/7x inside the sine function, is x a part of the denominator or is it one-seventh of x? I just need to get the problem right so I can help you.
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04/12/21

April B.

x/7 is inside the cosine function and the x in 1/7x is a part of the denominator. Thank you so much!
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04/12/21

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