Mark the correct alternative in the following:
If x, y ∈ R, then the determinant 
lies in the interval
=
Δ = ( sin y – cos y)[(cos x )2 + ( sin x)2]
= ( sin y – cos y)
= - ( cos y – sin y)
1
Mark the correct alternative in the following:
If x, y ∈ R, then the determinant lies in the interval
=
Δ = ( sin y – cos y)[(cos x )2 + ( sin x)2]
= ( sin y – cos y)
= - ( cos y – sin y)