What is the reflection of the point (-0.5, 6) in the x-axis?
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If ( x - 5)2 + (y - 2)2 + (z - 9)2 = 0 , then value of (x + y - z) is
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AB is the diameter of a circle with center O and P be a point on its circumference. If ∡POA = 120°, then the value of ∡PBO is
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If 1/6 of x - 7/2 of 3/7 equals - 7/4, then the value of x is