__Category__: Differential Calculus, Algebra"Published in Suisun City, California, USA"

Find the derivative for

__Solution__:

Consider the given equation above

Apply the derivative of a rational function, we have

"Published in Suisun City, California, USA"

Find the derivative for

Consider the given equation above

Apply the derivative of a rational function, we have

"Published in Suisun City, California, USA"

Find the derivative for

Consider the given equation above

Apply the derivative by power, we have

"Published in Suisun City, California, USA"

The lower right-hand corner of a long piece of paper 6 in. wide is folded over to the left-hand edge as shown. The length L of the fold depends on the angle θ. Show that

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Consider the given figure above and label further using the principles of Plane Geometry, we have

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By Pythagorean Theorem,

We need to use another equations in order to eliminate x and y. By using trigonometric functions of right triangles, we have

Using a small right triangle

Using a large right triangle

Consider again the equation,

Substitute the values of x and y, we have

Take the square root on both sides of the equation, we have

Therefore,

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Rewrite the expression for

Consider the given equation above

Expand the logarithmic expression for the main fraction, as follows

Expand the logarithmic expression for the second term, as follows

Rewrite the logarithmic expression for the square root and cube root functions and therefore,

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