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

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

sin 690^@ cos 930^@ + tan(-765^@) cosec (-1170^@)

The value of sin 0^(@) + cos 30^(@) - tan 45^(@) + cosec 60^(@) + cot 90^(@) is equal to

The value of sec 70^@.sin 20^@ + cos 20^@.cosec 70^@ =………..

Find the values of: cosec 780^@

The value of (sin^2 30^@+ cos^2 60^@- sec 35^@.sin^2 55^@)/(sec60^@+ cosec 30^@) is equal to: (sin^2 30^@+ cos^2 60^@- sec 35^@.sin^2 55^@)/(sec60^@+ cosec 30^@) का मान क्या होगा ?

The value of (sin^2 60^@+cos^2 30^@- sec 35^@.sin 55^@)/(sec 60^@+cosec 30^@) is equal to: (sin^2 60^@+cos^2 30^@- sec 35^@.sin 55^@)/(sec 60^@+cosec 30^@) का मान किसके बराबर है?

Find the value of (i) sin (765^(@)) (ii) cosec (-1110^(@)) (iii) cot (-600^(@))

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