SOLUTION: 7. Suppose sin a= -4/5 where 3pie/2 <a< 2pie.
Find the exact value of sin 2a
8. Suppose tan a= -4/3 where pie/2<a<pie.
Find the exact value of cos 2a
15. Suppose sin the
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Trigonometry-basics
-> SOLUTION: 7. Suppose sin a= -4/5 where 3pie/2 <a< 2pie.
Find the exact value of sin 2a
8. Suppose tan a= -4/3 where pie/2<a<pie.
Find the exact value of cos 2a
15. Suppose sin the
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