The example T(x) = x² is not invertible because x² = b has two solutions for positive b a ution for negative b. Which of the following transformations (from the real numbers R¹ I numbers R¹) are invertible? (a) T(x) = x³ (b) T(x) = et (c) T(x) = x+11 (d) T(x) = cos(x)

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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Problem 9. A nonlinear transformation is invertible if T(x) = b has exactly one solution for every
b. The example T(x) = x² is not invertible because x² = = b has two solutions for positive b and no
solution for negative b. Which of the following transformations (from the real numbers R¹ to the
real numbers R¹) are invertible?
(a) T(x) = x³
(b) T(x) = et
(c) T(x)=x+11
(d) T(x) = cos(x)
Transcribed Image Text:Problem 9. A nonlinear transformation is invertible if T(x) = b has exactly one solution for every b. The example T(x) = x² is not invertible because x² = = b has two solutions for positive b and no solution for negative b. Which of the following transformations (from the real numbers R¹ to the real numbers R¹) are invertible? (a) T(x) = x³ (b) T(x) = et (c) T(x)=x+11 (d) T(x) = cos(x)
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