Let P = {θ∶ sin θ - cos θ = √2 cos θ} and Q = {θ∶ sin θ + cos θ = √2 sin θ} be two sets. Then:

Let P = {θ∶ sin θ - cos θ = √2 cos θ} and Q = {θ∶ sin θ

1.	Let P = {θ∶ sin θ - cos θ = √2 cos θ} and Q = {θ∶ sin θ + cos θ = √2 sin θ} be two sets. Then:
A.	P ⊂ Q and Q - P ≠ 0.
B.	P ⊄ Q.
C.	Q ⊄ P.
D.	P = Q.
Answer» E.

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Let P = {θ∶ sin θ - cos θ = √2 cos θ} and Q = {θ∶ sin θ + cos θ = √2 sin θ} be two sets. Then:

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