Show that tan(x) – 1 2. Let y = sec(x) 1 + tan(x) y' sec(x) 3. Find all x-values where the graph of f(x) = x – 2 cos(x)has a horizontal tangent line.
antiderivative (tan^6 x sec^3 x )
Sec taner alx
Sec taner alx
Find the Wronskian of the given functions and determine if the functions are independent or linearly dependant linearly y1yx+3 y =2x-5
1. Compute the Wronskian for the following functions. Then use the Wronskian to determine whether the functions are linearly independant or linearly dependant. a) {(tan2x - sec2 x),3 (b) le,e,e) 2. Use variation of parameters to find a general solution to 2y" -4ry 6y3 1 given that y 2 and y2- 3 are linearly independant solutions of the associated homogeneous equation. (Hint: be careful the equations are in the right form.) Find a particular solution for each of the following...
3. (6 points each) Differentiate the following functions. Do not simplify your answer. a. f(x) = 2*+1 In (x+1) b. p(x) = [arctan (x)]3 c. Q(x) = ex-sec(x)
verify algebraically
cos(-x) -= sec x + tan x 1+ sin(-x) tan x + cotx=sec X CSC X
Rewrite the expression sec(2) + csc() 1+tan(x) in terms of sin(x). sec(x) + csc(x) 1+tan () Preview Submit Lice Question 4. Points possible: 1 Unlimited attempts. Message instructor about this question
please show all steps &
work, thanks!
T/4 3. Evaluate the integral 6.** (sec x(sec x – tan x)) dx
Heteroskedasticity is a problem with the a. dependant variables b. independent vriables c. the error term d. the choice of variables and what has been ommitted Does ommitting a variable in our regression always cause OMMITTED VARIABLE BIAS a. Yes b. “Yes, if the R^2 is low" c. No d. “Yes, if the R^2 is high" Imperfect multicolinearity a. affects the standard...
Verify that the equation is an identity. sec *x-tan 4x = 2 sec 2-1 To verify the identity, start with the more complicated side and transform it to look like the other side. Choose the correct transformations and transfer sec 4x-tan 4x = sec?x + tan x) Factor the difference of two squares. O(secx+ tanºx) (Type an exact answer in simplified form.) Choose an identity, and use it to transform tan-x. Then simplify. = 2 secx-1 7