What is the limit as x approaches 0 of (ax)/(tan(x)) ?

The limit as x approaches 0 of (ax)/(tan(x)) is a

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limit as x approaches 0 of (ax)/(tan(x))

x \to 0 lim (\frac{a x}{tan ( x )})

a

Solution steps

x \to 0 lim (\frac{a x}{tan ( x )})

x \to a lim [c \cdot f (x)] = c \cdot x \to a lim f (x)

= a \cdot x \to 0 lim (\frac{x}{tan ( x )})

Use the basic trigonometric identity:

\frac{1}{tan ( x )} = cot (x)

= a \cdot x \to 0 lim (x cot (x))

Rewrite for L'Hopital

= a \cdot x \to 0 lim (\frac{x}{\frac{1}{c o t ( x )}})

Apply L'Hopital's Rule

: x \to 0 lim (\frac{1}{sec ^{2} ( x )})

= a \cdot x \to 0 lim (\frac{1}{sec ^{2} ( x )})

Plug in the value

x = 0

= a \frac{1}{sec ^{2} ( 0 )}

Simplify

a \frac{1}{sec ^{2} ( 0 )} : a

= a

x \to 0 + lim (x csc (x))

x \to 0 lim (x \cdot \frac{1}{ln ( x )})

x \to 0 lim (x^{4} cos^{5} (\frac{1}{x}))

x \to 0 - lim (\frac{e ^{x^{2}} - 1}{x})

x \to 0 lim (x^{2} + 6 x)

What is the limit as x approaches 0 of (ax)/(tan(x)) ?
The limit as x approaches 0 of (ax)/(tan(x)) is a