which of the following describes all values of x for which 1 -x2≥0?
ক) x≤-1
খ) x≤-1 or x≥ 1
গ) x≥1
ঘ) -1≤x≤1
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খ) Service
গ) clerical
ঘ) a,b& c
ক) Francois Brochet
খ) Timothy Butler
গ) Robert Zoellick
ঘ) None of these
ক) 1,600
খ) 2,400
গ) 0.
ঘ) 400
ক) MC is an increasing function of production quantity .
খ) MC is a decreasing function of production quantity
গ) Initially MC is a decreasing function of production quantity, attains a minimum and then it is an increasing function of production quantity.
ঘ) None of them
ক) J. K. Rowling
খ) Roald Dahi
গ) Jacqueline Wilson
ঘ) Ronald Jacques
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