Question

cot 5 . cot 30 × 4cot 85 = 4/root 3 true or false , solve​

Answer 1

Given that cot5 cot10 .cot85

=cot5 cot10 .cot(90 −10 )cot(90 −5 =cot5 cot10 ..tan10

tan5 =(tan5 cot5 )(tan10 cot10 ).(cot45∘=(1)(1(1).(1)=1

Answer 2

Answer:

Brain drain is defined as the migration of health personnel in search of the better standard of living and quality of life, higher salaries, access to advanced technology and more stable political conditions in different places worldwide.

please refer to the attachment..