" (ii) "cot105^(@)-tan105^(@)=2sqrt(3)

Prove that (i) "cos " 15^(@) - " sin " 15^(@) = (1)/(sqrt(2)) (ii) " cot " 105^(@) - " tan " 105^(@) =2sqrt(3) (iii) (tan 69^(@) + tan 66^(@))/(1-tan 69^(@) tan 66^(@)) =-1

sin105^(@)+cos105^(@)=

cot(tan^(-1)sqrt(3))

cot(tan^(-1)sqrt(3))

cos105^(@)+sin105^(@) = …………

Show that sin 105^(@) + cos 105^(@) =(1)/(sqrt(2))

Prove that : (i) "sin"105^(@)+cos105^(@)=(1)/(sqrt(2)) (ii) cos105^(@)+cos15^(@)="sin"75^(@)-"sin"15^(@)

If tan 15^(@) = 2 - sqrt(3) , then show that 2 tan 1095^(@) + cot 975^(@) + tan (-195^@) = 4 - 2sqrt(3) .

if cot15^(@)=m, " then find " (cot195^(@)+cot345^(@))/(tan15^(@)-cot105^(@))

If tan15^(@)=2-sqrt(3) then value of tan15^(@)cot75^(@)+tan75^(@)cot15^(@) is