1 Express cos332 degree as a function of an angle in Quad 1

1. Express cos332 degree as a function of an angle in Quad 1.

2. Express tan 11 PI/12 degree as a function of an angle in Quad 1.

By identity we know that cos (360-teta)=costeta

1) cos (332degree)= cos (360-28)=cos28 degre

(hence cos28 lies in 1st quadrant)

2)tan (11pi/12)=tan (165degree)=tan (180-15)=-tan15degree

(Hence lies in 1st quadrant )