((sin35)/(cos55^(@)))^(2)+((cos55^(@))/(sin35^(@)))-2cos60^(@)

Simplify (sin35^(@))/(cos55^(@))+(cos55^(@))/(sin35^(@))-2cos^(2)60^(@)

((sin 35^(@))/(cos 55^(@)))^(2)-((cos55^(@))/(sin 35^(@)))^(2) +2 sin 30^(@) is equal to

Evaluate the following: ( i )((sin35o)/(cos55o))^(2)+((cos55o)/(sin35o))^(2)-2cos60o( ii) (2cos67o)/(sin23o)-(tan40o)/(cot50o)-cos0o

Evaluate the following: (i) ((sin35)/(cos55))^2+((cos55)/(sin35))^2-2cos60 (ii) (2cos67)/(sin23)-(tan40)/(cot50)-cos0

sin 85^(@)-sin 35^(@) - cos 65^@

Evaluate : (sin 35^(@) cos 55^(@) + cos 35^(@) sin 55^(@))/ (cosec^(2) 10^(@) - tan^(2) 80^(@))

Evaluate the following: (i) (cot40^@)/(tan50^@)-1/2((cos35^@)/(sin55^@)) (ii) ((sin27^@)/(cos63^@))^2-((cos63^@)/(sin27^@))^2

Find the least positive x in degree for which tan x= (cos5^(@)cos20^(@)+cos35^(@)cos50^(@)-sin5^(@)sin20^(@)-sin35^(@)sin50^(@))/(sin5^(@)cos20^(@)-sin35^(@)cos50^(@)+cos5^(@)sin20^(@)-cos35^(@)sin50^(@))

The smallest positive value of x (in degrees) for whichcos tan x=(cos5^(@)cos20^(@)+cos35^(@)cos50^(@)-sin50^(@)sin20^(@)-sin35^(@)sin50^(@))/(sin5^(@)cos20^(@)-sin35^(@)cos50^(@)+cos5^(@)sin20^(@)-cos35^(@)sin50^(@))

Evaluate : ( 1 ) cosec (65° +theta) -sec (25° - theta) - tan (55° + theta) + cot (35° - theta) (2) (3cos55^(@))/(7sin35^(@))-(4(cos70^(@)cosec20^(@)))/(7(tan5^(@)tan25^(@)tan45^(@)tan65^(@)tan85^(@)))