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

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

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

Evaluate : tan 35^(@) tan 60^(@) tan 30^(@) tan65 .

Find tan15^(@).tan25^(@).tan45^(@).tan65^(@).tan75^(@) .

Find (tan A)/((1-cot A))+(cot A)/((1-tan A))

Find (1+tan2^(@))(1+tan43^(@)) .