Question:a - b থেকে b - a বিয়োগ করলে বিয়োগফল কত হবে ? 

A a + b 
B 0 
C 2a - 2b 
D a 

+ Answer
C 

+ Explanation
a - b

- a + b

(+) (-)
______________
2a - 2b

+ Report

Irin Moni

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