Question

State the quadrant in which Theta lies
if tan Theta > 0 and sin Theta > 0

Answer 1

Please explain please

Answer 2

all of your questions here are asking if you understand the same basic thing.

Make the following table

Quadrant sin cos tan
1
2
3
4

and now populate it with + or - depending on the sign. For example, both sin and cos are positive in the first quadrant, hence tan is also because tan = sin/cos. Hence the first row is

Quadrant sin cos tan
1 + + +
2
3
4

You do the rest. Once you've done that, all of the questions you've posted will be straight-forward.