((sin49^(@))/(cos41^(@))-(cos17^(@))/(cos73^(@)))=?

((sin49^(@))/(cos41^(@))-(cos17^(@))/(sin73^(@)))=?

(sin19^(@))/(cos71^(@))+(cos73^(@))/(sin17^(@))

" The value of ((sin17^(@))(cos13^(@))+(cos17^(@))(sin13^(@)))/((cos23^(@))(cos37^(@))-(sin157^(@))(sin37^(@))) is equal to

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

Evaluate the following: (i) ((sin49^@)/(cos41^@))^2+((cos41^@)/(sin49^@))^2 (ii) cos48^@-sin42^@

(cos17^(@)+sin17^(@))/(cos17^(@)-sin17^(@))=?

sin47^(@)+cos77^(@)=cos17^(@)

Prove that : (i) tan 5^@tan 25^@ tan 30^@tan 65^@tan 85^@=(1)/(sqrt(3)) (ii) cot 12^@cot38^@cot 52^@cot60^@cot78^@=(1)/(sqrt(3)) (iii) cos 15^@cos 35^@cosec 55^@cos 60^@cosec 75^@=(1)/(2) (iv) cos 1^@cos 2^@cos 3^@.....cos 180^@=0 (v) ((sin 49^@)/(cos 41^@))^2+ ((cos 41^@)/(sin 49^@))^2=2

What is the value of (sin 19^@)/(cos 71^@) + (cos 73^@)/(sin 17^@) ?