Find `tan (-330^@)`

Find the value of: (i) cos 210^(@) (ii) "sin" 225^(@) (iii) "tan" 330^(@) (iv) cot(-315^(@)) (v) "sec"(11pi)/(4)

Find the value of (i) cos 480^(@) " " (ii) sin 1230^(@) " "(iii) cot (-135^(@)) (iv) "cosec "(-1410^(@))" "(v) cos (-870^(@)) " "(vi) tan 330^(@)

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

Find tan tan ^(-1) (2020)

Find the value of (a) cot 300^(@) (b) tan 330^(@) (c) cos (-60)^(@) (d) sin (-150)^(@) (e) cos ( -120)^(@)

Find the value of (a) cos 120^(@) (b) sin 240^(@) (c) tan (-60^(@)) (d) cot 300^(@) (e) tan 330^(@) (f) cos (-60)^(@) (g) sin (-150)^(@) (h) cos ( -120)^(@)

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

Find sin330^@.cos120^@+ cos210^@.sin300^@

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

Find tan1^(@).tan2^(@)……………….tan89^(@)