(cos tan(-330^(@))

Find tan(-330^(@))

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)^(@)

sin 420^(@) * cos 390^(@)- cos(-330^(@))* sin(-300^(@))=

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

Prove that: cos570^(@)s in510^(0)+sin(-330^(@))cos(-390^(@))=0

If cos theta=-(1)/(2) and piltthetalt(3pi)/(2) , then find the value of 4 tan^(2)theta-3cos ec^(2)theta . Prove that, cos 570^(@) sin510^(@)+sin(-330^(@))cos(-390^(@))=0

If cos theta=-(1)/(2) and piltthetalt(3pi)/(2) , then find the value of 4 tan^(2)theta-3cos ec^(2)theta . Prove that, cos 570^(@) sin510^(@)+sin(-330^(@))cos(-390^(@))=0

Find tan (-330^@)

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

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