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19. Find the exact value of cos(195). A. 6-1 B. 6+4 2 C. V6+2 D.-6-2 4
19. Find the exact value of cos(195). A. 6-1 B. 6+4 2 C. V6+2 D.-6-2 4
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
6th Edition
978-0471858249, 0471858242
