Question

-1× -1= +1 kyou hota hai
​

Answer 1

Answer:

because minus into minus is plus

Answer 2

Bro vo
-1 x -1 = 1
Hota hai kyuki

There is a law which says that

If two number are multiplied or divide then it applies that

+,- = -
+,+ = +
-,- = +
-,+ = -



So in your question:
-1 x -1 = +1
Is because of third rule (-,- = +) which u can see above.



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