(tan145^(@)-tan125^(@))/(1+tan145^(@)tan125^(@))=

If tan 35^(@)=x , then prove that (tan 145^(@)- tan 125^(@))/(1+tan145^(@) tan 125^(@))=(1-x^(2))/(2x)

If tan 35^(@) = k , then the value of ( tan 145^(@) - tan 125^(@))/(1+ tan 145^(@) tan 125^(@)) =

If tan 35^(@) = k , then the value of ( tan 145^(@) - tan 125^(@))/(1+ tan 145^(@) tan 125^(@)) =

" If " Tan35^(0)=k Then the value of " Tan145^(0)-Tan125^(@))/(1+Tan145^(@)Tan125^(@))

If Tan35^(0)=k , Then the value of (Tan145^(0)-Tan125^(0))/(1+Tan145^(0)Tan125^(0))= (A) (2k)/(1-k^(2)), (B) (2k)/(1+k^(2)) (C) (1-k^(2))/(2k), (D) (1-k^(2))/(1+k^(2))

tan(100^(@))+tan(125^(@))+tan(100^(@))tan(125^(@))=

tan(100^(@))+tan(125^(@))+tan(100^(@))tan(125^(@))=

tan(100^(@))+tan(125^(@))+tan(100^(@))tan(125^(@))= ............ A) 0 B) 1/2 C) -1 D) 1

If (tan46^(@)-tan1^(@)-1)(tan47^(@)-tan2^(@)-1)(tan48^(@)-tan30^(@)-1)...(tan89^(@)-tan44^(@)-1), then find the value of n.

Prove that, tan25^(@).tan15^(@)+tan15^(@)tan50^(@)+tan25^(@)tan50^(@)=1 .