limit as x approaches pi of ln(sin(x))

解答

x \to π lim (ln (sin (x)))

不存在

求解步骤

x \to π lim (ln (sin (x)))

若

x \to a^{-} lim f (x) \neq = x \to a^{+} lim f (x)

则极限不存在

x \to π + lim (ln (sin (x))) =

不存在

x \to π - lim (ln (sin (x))) = - \infty

= 不存在

\int \frac{sec ( z ) tan ( z )}{sec ( z )} d z

d er i v a t i v e (1 - 25 x^{2})^{2} arcsin (5 x)

t an g e n t \frac{64}{x ^{2} + 16}, at x = 3

\int_{2}^{3} (x^{2} - 4) d x

t an g e n t f (x) = \frac{6 x}{2 + x ^{2}}, (2, 2)