1)Find the exact value of sin 165 degrees.

Answer: (sqrt6 + sqrt2)/4

2) Simplify: (4m/5n^2)- (n/2m)

Answer: (8m^2-5n^3)/10n^2m

Thanks

Answer: (sqrt6 + sqrt2)/4

2) Simplify: (4m/5n^2)- (n/2m)

Answer: (8m^2-5n^3)/10n^2m

Thanks