" tan "(-330^(@))

Simplify : sin 300^(@) cos 390^(@) tan (-855^(@))+cos(-120^(@))* sin (-330^(@))

Find the values of the following trigonometric ratio: sin(-330^(@))

Find the value of following trigonometric function. sin(-330^(@))

Find the supplementary angle of each of the following angles: (2)/(11) " of " 330^(@)

Find the value of : (i) sin 30^(@)+cos 60^(@) (ii) sin 0^(@)-cos 0^(@) (iii) tan 45^(@)- tan 37^(@) (iv) sin 390^(@) (v) cos 405^(@) (vi) tan 420^(@) (vii) sin 150^(@) (viii) cos 120^(@) (ix) tan 135^(@) (x) sin (330^(@)) (xi) cos 300^(@) (xii) sin (-30^(@)) (xiii) cos (-60^(@)) (xiv) tan (-45^(@)) (xv) sin (-150^(@))

Find the value of : (i) sin 30^(@)+cos 60^(@) (ii) sin 0^(@)-cos 0^(@) (iii) tan 45^(@)- tan 37^(@) (iv) sin 390^(@) (v) cos 405^(@) (vi) tan 420^(@) (vii) sin 150^(@) (viii) cos 120^(@) (ix) tan 135^(@) (x) sin (330^(@)) (xi) cos 300^(@) (xii) sin (-30^(@)) (xiii) cos (-60^(@)) (xiv) tan (-45^(@)) (xv) sin (-150^(@))

The value of sin(-330^(0)) is

Prove that: sin420^(@)cos390^(@)+cos(-300^(@))sin(-330^(@))=1