Show that |eix - 1| |x| for all x ( R). Write eix = cosx +
Question:
Write eix = cosx + i sin x, express cosx in terms of sin2 x/2, and use the inequality | sin t | ≤ |t|, t ( R (which you also must prove).
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e it 1 cos ti sin t1 cos t1i sin t cos t ...View the full answer
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Related Book For 
An Introduction to Measure Theoretic Probability
ISBN: 978-0128000427
2nd edition
Authors: George G. Roussas
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