(tan35^(@))/(cot55^(@))+(cot78^(@))/(tan12^(@))=?

(tan 35^(@))/(cot 55^(@))+(cot 78^(@))/(tan 12^(@))=?

Find the value of (cot25^(@)+cot55^(@))/(tan25^(@)+tan55^(@))+(cot55^(@)+cot100^(@))/(tan55^(@)+tan100^(@))+(cot100^(@)+cot25^(@))/(tan100^(@)+tan25^(@))

Find the value of (cot 25^(@)+cot 55^(@))/(tan 25^(@)+tan55^(@))+(cot 55^(@)+cot 100^(@))/(tan 55^(@)+tan 100^(@))+(cot 100^(@)+cot 25^(@))/(tan 100^(@)+tan 25^(@))

((tan35 ^ (@)) / (cot55 ^ (@))) + ((cos78 ^ (@)) / (sin (12 ^ (@)))) - 1

Evaluate: (cos 55^(@))/(sin 35^(@))+(cot 35^(@))/(tan 55^(@))

Evaluate : (i) (cos 55^(@))/(sin 35^(@)) + (cot 35^(@))/(tan 55^(@)) (ii) sin 42^(@) sin 48^(@) - cos 42^(@) cos 48^(@)

tan(55^(@)+x)=cot(35^(@)-x)

Find the value of sqrt(3)tan12^(@)cot45^(@)cot60^(@)tan78^(@)

Evaluate without using trigonometric tables. 2(("tan" 35^(@))/("cot" 55^(@)))^(2)+(("cot" 55^(@))/("tan" 35^(@)))^(2)-3(("sec" 40^(@))/("cosec" 50^(@)))

The value of (tan55^(@))/(cot35^(@))+cot1^(0)cot2^(0)cot3^(0)...cot90^(@), is -2 (b) 2(c)1(d)0