[" 1."quad " (i) "(cos37^(@))/(sin53^(@))],[" 2."quad " (i) "cos ec25^(@)-sec65^(@)]

The value of (cos53^(@)-sin37^(@)) is

Evaluate : (i) 3 cos 80^(@) "cosec 10"^(@) + 2 sin 59^(@) sec 31^(@) (ii) (cos 70^(@))/(sin 20^(@)) + (cos 59^(@))/(sin 31^(@)) - 8 sin^(2) 30^(@) (iii) "cosec" (65^(@) + A) - sec(25^(@) - A)

(sin 65^(@) + sin 25^(@))/( cos 65^(@) + cos 25^(@))=

Evaluate |["cos" 65^(@), "sin"65^(@)],["sin"25^(@), "cos"25^(@)]|

Evaluate the following: (cos37^(0))/(sin53^(0))( ii) (tan54^(@))/(cot36^(@)) (iv) (cos ec34^(0))/(sec56^(@))

Evaluate the following: (i) (cos37^(@))/(sin53^(@))(ii)(sin41^(@))/(cos49^(@))(iii)(tan54^(@))/(cot36^(@))

sin25^(@)cos65^(@)+cos25^(@)sin65^(@)

sin25^(@)cos65^(@)+cos25^(@)sin65^(@)

Evaluate: sin 25^(@) cos 65^(@) + cos 25^(@) sin 65^(@) .

Evaluate the ((3 cos 43^(@))/(sin 47^(@)))^(2) - (cos 37^(@) "cosec" 53^(@))/(tan 5^(@) tan 25^(@) tan 45^(@) tan 65^(@) tan 85^(@))