" iii) "tan105^(@)

105^(2)

Evaluate: i) cos75^(@) , ii) cos15^(@) , iii) tan75^(@) , iv) tan105^(@) , v) sin105^(@)

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

Find the value : tan105^(@)

Find the value of tan 105^(@) .

What is the value of tan 105^(@) ?

Find the values of the following: tan105^(@) ii.(tan(13 pi))/(12)

Find the values of the following: (i) tan105^0 ( ii.) tan((13pi)/12)

Find the value of the following (i) sin105^(@)+cos105^(@)

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