A s = (x : x > 5 অথবা x < -3)
B s = (x : x < 5 অথবা x > -3)
C s = (x : x > 5 অথবা x > -3)
D s = (x : x < 5 অথবা x < -3)
Correct Answer: Option C
x2 - 2x - 15 > 0 x2-5x+3x-15 >0 0r,x(x-5)+3(x-5) >0 or,(x-5)(x+3)>0 so, x>5 or x>-3
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