যদি x = - 3 হয়, তাহলে - 3x1 এর মান কত?

A 9

B - 9

C 18

D - 27

Solution

Correct Answer: Option A

দেওয়া আছে,
 x = - 3

∴ - 3x1 = (- 3)(- 3)1
=(- 3)(- 3)
= 9

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