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cos2 s 2t to find L{sin² t} (1) (a) Use the identity sin? t = (b) Use (a) and the identity cos 2t = cos? t – sin? t to find L{cos² t}

cos2 s 2t to find L{sin² t} (1) (a) Use the identity sin? t = (b) Use (a) and the identity cos 2t = cos? t – sin? t to find L{cos² t}

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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1- cos 2t (1) (a) Use the identity sin? t to find L{sin² t} 2 (b) Use (a) and the identity cos 2t cos t – sin?t to find L{cos² t}
Transcribed Image Text:1- cos 2t (1) (a) Use the identity sin? t to find L{sin² t} 2 (b) Use (a) and the identity cos 2t cos t – sin?t to find L{cos² t}
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