`sin(-870^@) + cosec(-660^@) + tan(-855^@)+2 cot (840^@)+cos (480^@) + sec (900^@)` is equal to

sin(-870^(@))+cos ec(-660^(@))+tan(-855^(@))+2cot(840^(@))+cos(480^(@))+sec(900^(@)) is equal to

(sin(-660^@)tan(1050^@).sec(420^@))/(cos(225^@)cosec(315^@)cos(510^@))=

(sin(-660^@)tan(1050^@)sec(-420^@))/(cos(225^@)cosec(315^@)cos(510^@))=

Find the values of sin 30^(@) + cos 30 ^(@) + tan 30 ^(@) + cot 30^(@) + sec 30 ^(@) + cosec 30^(@) .

( sin (-660^(@)) tan (1050^(@)) sec (-420^(@)))/(cos(225^(@)) "cosec"(315^(@)) cos (510^(@)))=

The value of sec(1305^(@))+cot(990^(@))+cos(-780^(@))-cos ec(-765^(@))-sin(-870 is equal to

( Sec^2 theta - cot ^2 (90 - theta))/( cosec ^2 67^@ - tan ^2 23^@) + sin ^2 40 ^@ + sin ^2 50^@ is equal to

(1+cot A-csc A)(1+tan A+sec A)" is equal to "

Evaluate the following (sin 30^(@) +tan 45^(@) -cosec 60^(@) )/( cot 45^(@)+cos 60^(@) -sec 30^(@))

Evaluate : (sec 42^(@))/( cosec 48^(@)) + ( 3 tan 50 ^(@))/( cot 40 ^(@)) - ( 2 cos 43 ^(@))/( sin 47^(@))