Ответ:
1.✓2cosn/4-tgn
✓2×✓2/2-0
✓2
4✓2
2.sin240*cos315
sin(240×✓2/2)
sin(120×✓2)
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Ответ:
1.✓2cosn/4-tgn
✓2×✓2/2-0
✓2
4✓2
2.sin240*cos315
sin(240×✓2/2)
sin(120×✓2)