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受欢迎的微积分 >

tangent f(x)=6sec(x)

解答

切线

f (x) = 6 sec (x)

解答

y = 6 sec (a_{0}) tan (a_{0}) x + 6 sec (a_{0}) - 6 sec (a_{0}) tan (a_{0}) a_{0}

求解步骤

计算在一般点

x = a_{0}

的切线

找到切点:

(a_{0}, 6 sec (a_{0}))

计算

f (x) = 6 sec (x)

的斜率:

\frac{df ( x )}{d x} = 6 sec (x) tan (x)

EN : T i tl e G e n er a l Eq u a t i o n Sl o p e A t P o in t 2 Eq : m = 6 sec (a_{0}) tan (a_{0})

找到斜率 m=

6 sec (a_{0}) tan (a_{0})

且穿过

(a_{0}, 6 sec (a_{0}))

的直线:

y = 6 sec (a_{0}) tan (a_{0}) x + 6 sec (a_{0}) - 6 sec (a_{0}) tan (a_{0}) a_{0}

y = 6 sec (a_{0}) tan (a_{0}) x + 6 sec (a_{0}) - 6 sec (a_{0}) tan (a_{0}) a_{0}

作图

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