1.(sin 30°)²+(cos 30°)²=1 2.cot(-660°)=√3/3
3.If cot ∅<0, and cos ∅<0,then ∅ lies in quadrant III
4.sin 45° cos 45° - cos 45° sin 45° = 0
5.Cos-300°=-1/2

ALL I NEED TO KNOW IS IF EACH ONE IS TRUE OR FALSE ASAP PLZZZ

step-by-step explanation:

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16

his answer is incorrect. i just used it, and it said it was incorrect. the answer is 0.