Question: 6,7,8,9,10 Find the exact value of each expression without using a calculator. 1. cos 420 2. sin(-390) 4. cos(-7/3) 6. tan(-2/3) 3. sin(377/4) 5. tan(77/6)

6,7,8,9,10

Find the exact value of each expression without using a calculator. 1. cos 420 2. sin(-390) 4. cos(-7/3) 6. tan(-2/3) 3. sin(377/4) 5. tan(77/6) 7. sec(7/2) 8. csc(-4/2) 9. cot(-37) 11. sin:'( V2/2) - 10. cot(225) 12. cos-'( V3/2)

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