Chapter 2: Q. 23 (page 233)

Find the derivatives of each of the functions in Exercises 17–50. In some cases it may be convenient to do some preliminary algebra.
$f (x) = 3 s e c x \tan x .$

Short Answer

Expert verified

$T h e v a l u e o f t h e d e r i v a t i v e i s : 3 s e c^{3} x + 3 s e c x \tan^{2} x .$

Step by step solution

Step 1. Given Information.

$f (x) = 3 s e c x \tan x .$

Step 2. General formulas for finding derivatives.

$\frac{d}{d x} (x^{n}) = n x^{n - 1}, \frac{d}{d x} (\sin x) = \cos x, \frac{d}{d x} (\cos x) = - \sin x, \frac{d}{d x} (\tan x) = s e c^{2} x, \frac{d}{d x} (s e c x) = s e c x \tan x, \frac{d}{d x} (c s c x) = - c s c x c o t x, \frac{d}{d x} (c o t x) = - c s c^{2} x, P r o d u c t r u l e : \frac{d}{d x} (u v) = u \frac{d v}{d x} + v \frac{d u}{d x}, Q u o t i e n t r u l e : \frac{d}{d x} (\frac{u}{v}) = \frac{v \frac{d u}{d x} - u \frac{d v}{d x}}{v^{2}}, C h a i n r u l e : \frac{d}{d x} (f o g (x)) = \frac{d}{d x} (f (g (x))) \times \frac{d}{d x} (g (x) .$

Step 3. Solving derivative using above formulas.

$f (x) = 3 s e c x \tan x D i f f e r e n t i a t i n g u \sin g t h e p r o d u c t r u l e w e g e t, \frac{d}{d x} (f (x)) = 3 (s e c x \frac{d}{d x} (\tan x) + \tan x \frac{d}{d x} (s e c x)) = 3 (s e c x s e c^{2} x + \tan x s e c x \tan x) = 3 s e c^{3} x + 3 s e c x \tan^{2} x .$

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Find the derivatives of each of the functions in Exercises 17–50. In some cases it may be convenient to do some preliminary algebra.
$f (x) = 3 s e c x \tan x .$

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. General formulas for finding derivatives.

Step 3. Solving derivative using above formulas.

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Find the derivatives of each of the functions in Exercises 17–50. In some cases it may be convenient to do some preliminary algebra.f(x)=3secxtanx.

Short Answer

Step by step solution

Step 1. Given Information.

Step 2. General formulas for finding derivatives.

Step 3. Solving derivative using above formulas.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Logic and Functions

Pure Maths

Mechanics Maths

Applied Mathematics

Discrete Mathematics

Calculus

Study anywhere. Anytime. Across all devices.

Find the derivatives of each of the functions in Exercises 17–50. In some cases it may be convenient to do some preliminary algebra.
$f (x) = 3 s e c x \tan x .$