2. Write a proper L.S. R.S. proof for each of the following trigonometric relations. a. cos²x+cot² x + sin²x = = csc² x b. 2 cos²x = cos 2x + 1
2. Write a proper L.S. R.S. proof for each of the following trigonometric relations. a. cos²x+cot² x + sin²x = = csc² x b. 2 cos²x = cos 2x + 1
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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Transcribed Image Text:2. Write a proper L.S. R.S. proof for each of the following trigonometric relations.
a. cos²x+cot² x + sin²x =
csc² x
b. 2 cos²x = cos 2x + 1
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