Which of the following number(s) is rational? (A) `sin 15^@` (B) `cos15^@` (C) `sin15^@cos15^@` (D) `sin15^@cos75^@`

Which of the following number(s) is/are rational? (A) sin15^(@) (B) cos15^(@) (C) sin15^(@)cos15^(@)(D)sin15^(@)cos75^(@)

Which of the following number is rational? sin15^(@)

Which of the following number (s) is/are rational number? (A) sin15^(@) (B) cos15^(@) (C) sin15^(@)cos15^(@)(D)sin15^(@)cos75^(@)

Which of the following number(s) is/are rational? (a)sin 15^(0)(b)cos15^(0)(c)sin15^(0)cos15^(0)(d)sin15^(0)cos75^(0)

Which of the following number (s) is/are rational ? a.sin 15^0 b. cos 15^0 c.sin 15^0cos 15^0 d. sin 15^0 cos 75^0

sin15^(@)+cos105^(@)=?

4sin75^@-3cos15^@=

sin 15^(@) + cos 105 ^(@) =

sin15^@cos75^@+cos^(2)15^@=

Value of sin15^(@)*cos15^(0) is