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-cos(x)
Limit of the function/ -cos(x)

Limit of the function -cos(x)

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You have entered [src] 
 lim (-cos(x))
x->0+
$$\lim_{x \to 0^+}\left(- \cos{\left(x \right)}\right)$$ 
Limit(-cos(x), x, 0)
Lopital's rule
There is no sense to apply Lopital's rule to this function since there is no indeterminateness of 0/0 or oo/oo type
The graph
Plot the graph
One‐sided limits [src] 
 lim (-cos(x))
x->0+
$$\lim_{x \to 0^+}\left(- \cos{\left(x \right)}\right)$$ 
-1
$$-1$$ 
= -1.0
 lim (-cos(x))
x->0-
$$\lim_{x \to 0^-}\left(- \cos{\left(x \right)}\right)$$ 
-1
$$-1$$ 
= -1.0
= -1.0
Rapid solution [src] 
-1
$$-1$$
Expand and simplify
Other limits x→0, -oo, +oo, 1
$$\lim_{x \to 0^-}\left(- \cos{\left(x \right)}\right) = -1$$
More at x→0 from the left
$$\lim_{x \to 0^+}\left(- \cos{\left(x \right)}\right) = -1$$
$$\lim_{x \to \infty}\left(- \cos{\left(x \right)}\right) = \left\langle -1, 1\right\rangle$$
More at x→oo
$$\lim_{x \to 1^-}\left(- \cos{\left(x \right)}\right) = - \cos{\left(1 \right)}$$
More at x→1 from the left
$$\lim_{x \to 1^+}\left(- \cos{\left(x \right)}\right) = - \cos{\left(1 \right)}$$
More at x→1 from the right
$$\lim_{x \to -\infty}\left(- \cos{\left(x \right)}\right) = \left\langle -1, 1\right\rangle$$
More at x→-oo
Numerical answer [src] 
-1.0
-1.0
The graph
Limit of the function -cos(x)
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