Which of the following expressions can be used to complete the equation below secx / 1+cot^2x=

tan x
tan^2 x
tan x cos x
tan x sin x

With: label the vertices and all the elements needed. find x

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis