What is `tan 15^(@)` equal to ?

tan15 ^ (@)

tan15^@ =

What is tan((pi)/(12)) equal to ?

What is tan(7(1)/(2))^(@) equal to ?

What is tan(7(1)/(2))^(@) equal to ?

What is tan(cos^(-1)x)) equal to?

tan15^(@) = …………

What is log (tan 1^@) + log (tan 2^@) + log (tan 3^@) + ........... + log (tan 89^@) equal to ?

If tan A = (1 - cos B)/(sin B), then what is (2 tan A )/( 1 - tan ^(2) A ) equal to ?

What is cosec ( 75 ^(@) + theta) - sec (15 ^(@) - theta) - tan (55 ^(@) + theta) + cot ( 35 ^(@) - theta) equal to ?