" (d) "tan75^(@)

Calculate the value of (i) sin 15^(@) " "(ii) cos 15^(@)" "(iii) tan 15^(@) (iv) sin 75^(@) " "(v) cos 75^(@) " "(vi) tan 75^(@)

Calculate the value of (i) sin 15^(@) " "(ii) cos 15^(@)" "(iii) tan 15^(@) (iv) sin 75^(@) " "(v) cos 75^(@) " "(vi) tan 75^(@)

Find the values of sin75^(@), cos75^(@), tan75^(@) and cot75^(@) .

tan 75 ^(@) - tan 30^(@)- tan 75^(@) tan 30^(@) =1.

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

tan15^(@) + tan 75^(@)=

The value of "tan"15^(@)+"tan"75^(@) is a) 2sqrt(3) b)2 c) 2-sqrt(3) d)4

The value of "tan"75^(@)-"cot"75^(@) is equal to

Show that: tan 10^(@)tan 15^(@) tan 75^(@)tan 80^(@)=1