Is this statement always, sometimes, or never true?If ∠L is an acute angle in an isosceles right triangle, then cos(L)=sin(L).alwayssometimesneverSubmit

Is this statement always, sometimes, or never true?If ∠X and ∠Y are acute angles in a scalene right triangle, then cos(X)=sin(Y).alwayssometimesneverSubmit

Is this statement always, sometimes, or never true?If ∠R and ∠S are acute angles in an isosceles right triangle, then sin(R)=sin(S).alwayssometimesneverSubmit

Is this statement always, sometimes, or never true?If ∠L is an angle in a right triangle and m∠L is between 30° and 50°, then sin(L)=cos(L).alwayssometimesneverSubmit

Is this statement always, sometimes, or never true?If ∠C is an acute angle, then sin(C)=cos(C).

Is this statement always, sometimes, or never true?If ∠Y and ∠Z are acute angles in an isosceles right triangle, then cos(Y)=cos(Z).