" (b) "cos105^(@)

105^(2)

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

Prove that sin 105^(@) + cos 105^(@) = cos 45^(@)

Calculate the value of following :- {:((a)cos75^(@)"",(b)sin15^(@)),((c)sin75^(@)"",(d)cos105^(@)):}

Calculate the percentage of s-character between hybrid orbitals having a bond angle of 105^(@) [ cos105^(@)=0.2588 ].

Show that sin 105^(@) + cos 105^(@) =(1)/(sqrt(2))

Prove that sin 75^(@) - sin 15^(@) = cos 105^(@) + cos 15^(@)

Prove that 4 sin 15^(@) sin 75^(@) = sqrt2 ( cos105^(@) + sin 75^(@))

Show that sin 150^(@) + cos 105^(@) =(1)/(sqrt(5))

Find the sign of the values of tan113^(0)-cos107^(0)=a and tan107^(0)-cos105^(@)=b