Question

How to decide in which quadrant is going in trigonometry?

Answer 1

Thus, in the first quadrant, where x and y coordinates are all positive, all six trigonometric functions have positive values. In the second quadrant, only sine and cosecant (the reciprocal of sine) are positive. In the third quadrant, only tangent and cotangent are positive.

Answer 2

All Dilver tea cups

Here

First quadrant:-

All are positive

Second quardrant:-

Silver(Sin)

Only sin and cosec positive rest all other are negative

Tea(Tan)

Here

Tan and cot is positive and other is negative

Cups(Cos/sec)

Only they are positive .

Here

In first quadrant

(90°+@) and (180°+@)

(180+@)=both negative and in positive too

There is no change .

Hope it helps u