Question

What is the sin(-330)?

Answer 1

sin(-330)=sin(360-330)=sin 30
u know whats sin 30?

Answer 2

1/2

Answer 3

right,so sin(-330) is also 1/2

Answer 4

What about cos and tan?

Answer 5

same way,cos 30 and tan 30
because -330 is same as 30

Answer 6

So which one would be negative?

Answer 7

none of them
-330 or 30 lies in 1st quadrant
where all ratios,sin,cos,tan,cot......are positive

Answer 8

What about -240?

Answer 9

-240=360-240=120
this lies in 2nd quadrant
only sin and cosec will be positive