निम्नलिखित का मान है?
`((tan20^(@))^(2))/((co s ec70^(@))^(2))+((cot20^(@))^(2))/((sec70^(@))^(@))+tan`
`15^(@).tan45^(@).tan75^(@)`.

The value of the following is : (tan20^(@))^(2)/(("cosec"70^(@))^(2))+((cot20^(@))^(2))/("sec70^(@))^(2)+2tan15^(@).tan45^(@).tan75^(@)

Find the value of ((tan20^(@))/(cos e)c70^(@))^(2)+((cot20^(@))/(sec70^(@)))^(2)+2tan75^(@)tan45^(@)tan15^(@)

Without using trigonometric tables , evaluate : ((tan20^(@))/(cosec70^(@)))^(2)+((cot20^(@))/(sec70^(@)))^2+2tan 15^(@)tan37^(@)tan53^(@)tan60^(@)tan75^(@)

Without using trigonometric tables , evaluate : ((tan20^(@))/(cosec70^(@)))^(2)+((cot20^(@))/(sec70^(@)))^2+2tan 15^(@)tan37^(@)tan53^(@)tan60^(@)tan75^(@)

What is the value of (tan^(2)25^(@))/(cosec^(2)65^(@))+(cot^(2)25^(@))/(sec^(2)65^(@))+tan20^(@)45^(@)tan70^(@) ?

Find value of ((tan20^@)/(cosec 70^@))^2+((cot20^@)/(sec70^@))^2+2tan15^@tan37^@tan53^@tan60^@tan75^@ .

tan 70^(@) - tan 20^(@) -2 tan 40^(@)=

tan 70^(@) - tan 20^(@) -2 tan 40^(@)=

What is the value of ( tan^(2) 25^(@) )/( cosec^(2) 65^(@) ) + ( cot^(2) 25^(@) ) /( sec^(2) 65^(@) ) + 2 tan 20^(@) tan 45^(@) tan 70^(@)?