cot105^(@)-tan105^(@)

105^(2)

cos105^(@)+sin105^(@) = …………

The value of cos105^(@)+sin105^(@) is

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

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

cos15^(@)+cos105^(@)=

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^(@)=

sin 105^(@) + cos 105^(@) = cos theta, then theta =