Establish the identity. cotu-cscu= - sin u 1 + cos u Which of the following statements establishes the identity? OA. cot ucscu=- cos u 1 sin u sin u cos u-1 sin u cos u+1 cos u +1 = 2 cos u-1 sin u(cos u + 1) sin u(cos u+1) - sin2u sin u cos u +1 ○ B. sin u 1 sin u-1 cot u- cscu= = cos u cos u cos u sin u + 1 sin u + 1 = sin 2 u+1 cos u(sin u + 1) sin u cos u +1 ○ C. cotu- cscu=- cos u 1 sin u = sin u cos u-1 sin u cos u+1 cos u +1 COS 2u+1 2 sinu sin u = sin u(cos u+1) sin u(cos u+1) cos u + 1

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Establish the identity.
cotu-cscu= -
sin u
1 + cos u
Which of the following statements establishes the identity?
OA.
cot ucscu=-
cos u 1
sin u sin u
cos u-1
sin u
cos u+1
cos u +1
=
2
cos u-1
sin u(cos u + 1) sin u(cos u+1)
- sin2u
sin u
cos u +1
○ B.
sin u 1
sin u-1
cot u- cscu=
=
cos u cos u
cos u
sin u + 1
sin u + 1
=
sin 2
u+1
cos u(sin u + 1)
sin u
cos u +1
○ C.
cotu- cscu=-
cos u 1
sin u
=
sin u
cos u-1
sin u
cos u+1
cos u +1
COS
2u+1
2
sinu
sin u
=
sin u(cos u+1) sin u(cos u+1)
cos u + 1
Transcribed Image Text:Establish the identity. cotu-cscu= - sin u 1 + cos u Which of the following statements establishes the identity? OA. cot ucscu=- cos u 1 sin u sin u cos u-1 sin u cos u+1 cos u +1 = 2 cos u-1 sin u(cos u + 1) sin u(cos u+1) - sin2u sin u cos u +1 ○ B. sin u 1 sin u-1 cot u- cscu= = cos u cos u cos u sin u + 1 sin u + 1 = sin 2 u+1 cos u(sin u + 1) sin u cos u +1 ○ C. cotu- cscu=- cos u 1 sin u = sin u cos u-1 sin u cos u+1 cos u +1 COS 2u+1 2 sinu sin u = sin u(cos u+1) sin u(cos u+1) cos u + 1
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