The equation y = sin x sin (x + 2) – sin2 (x + 1) represents a straight line lying in:

Second and third quadrants only

First, second and fourth quadrants

First, third and fourth quadrants

Third and fourth quadrants only

The equation y = sin x sin (x + 2) – sin2 (x + 1) represents a strai

1.	The equation y = sin x sin (x + 2) – sin2 (x + 1) represents a straight line lying in:
A.	Second and third quadrants only
B.	First, second and fourth quadrants
C.	First, third and fourth quadrants
D.	Third and fourth quadrants only
Answer» E.