Question

`lim_(wto(3pi)/4)2cot(2w)`?

Answer 1

`lim_(wto(3pi)/4)2cot(2w)=0`

Explanation:

`2cot(2w)=2cos(2w)/sin(2w)`

`2w=2((3pi)/4)=(3pi)/2`

`sin((3pi)/2)=-1`
`cos((3pi)/2)=0`

`2(0/-1)=2(0)=0`