sin31^(@)/cos59^(@)

(sin31^(@))/(2cos59^(@))=

(cos80^(@))/(sin10^(@))+cos59^(@)cos ec31^(@)=2

Prove that : (cos80^(@))/(sin10^(@))+cos59^(@)cosec31^(@)=2

(1-(cos61^(@))/(cos1^(@)))(1-(cos62^(@))/(cos2^(@)))(1-(cos63^(@))/(cos3^(@)))...(1-(cos119^(@))/(cos59^(@)))

(cos70^(@))/(sin20^(@))+(cos59^(@))/(sin31^(@))=8sin^(2)30^(@)

Evaluate : (cos80^@)/(sin10^@)+cos59^@ cosec31^@ .

Prove that: (cos80^@)/(sin10^@)+cos59^@\ cosec\ 31^@=2

(sin30^(@)17)/(cos59^(@)43)

With out using tables, evaluate : 4 tan 60^(@) sec 30^(@) + (sin 31^(@) sec 59^(@) + cot 59^(@) cot 31^(@))/(8 sin^(2) 30^(@) - tan^(2) 45^(@))