4. The following integration can be solved by using the Substitution technique, where we have 수 U = sech x^2 + and du = -2x sech x^2 tanh x^2 dx to get 4x sin(sech x²) sech x2 tanh x2 dx = (Choose the correct letter).

Calculus: Early Transcendentals
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Author:James Stewart
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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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4. The following integration can be solved by using the
Substitution
technique, where we have
u =
sech x^2
+ and du =
-2x sech x^2 tanh x^2 dx
to get
4x sin (sech x²) sech x2 tanh x2 dx =
(Choose the correct letter).
A. -2 cos (sech x²) +c
B. 2 cos(sech x²) + c
C. 2 sech (x2) + c
D. 2 cos(sech x) + c
Transcribed Image Text:4. The following integration can be solved by using the Substitution technique, where we have u = sech x^2 + and du = -2x sech x^2 tanh x^2 dx to get 4x sin (sech x²) sech x2 tanh x2 dx = (Choose the correct letter). A. -2 cos (sech x²) +c B. 2 cos(sech x²) + c C. 2 sech (x2) + c D. 2 cos(sech x) + c
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