If 5!=5×4×3×2×1 8!=8×7×6×5×4×3×2×1 then what is −8!=? and −5!=? What is the elongation of -ve factorial?
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Q3
The product of two integers 78×56×210. If one of them is 72×56×25. What will be the other
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Q4
State which is greater:
(i) (8 + 9) × 10 and 8 + 9
× 10
(ii) (8 − 9) × 10 and 8 − 9 × 10
(iii) {(−2) − 5} × (−6) and (−2) −5 × (−6)
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Q5
In the given series how many times the number ′6′ is followed by the number ′8′ but ′8′ should not be followed by ′1′? 2,5,3,6,8,4,9,6,8,1,5,1,6,8,7,5,6,2,7,5,3,6,8,3,7,6,8,1,5,6,8