= (sin 45°)2 + (cos 45°)2( sin 45°)2 − (cos 45°)2= 1 + 0 - 1= 0
Therefore, the value of sin2 45° + cos2 45° sin2 45° − cos2 45° is 0.
= (sin 45°)2 + (cos 45°)2( sin 45°)2 − (cos 45°)2
= 1 + 0 - 1
= 0
Therefore, the value of sin2 45° + cos2 45° sin2 45° − cos2 45° is 0.