Question

Evaluate :
(-1)x(-1)x(-1)x(-1)x(-2)x(-1)x(-2)x(-1)x(-1)

step by step explanation


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Answer 1

Answer:

4

Step-by-step explanation:

-1*-1*-1*-1*-1*-1*-1*=1 now -2*-2=4so 4*1=4

Answer 2

(-4)

Step-by-step explanation:

(-1) × (-1) × (-1) × (-1) × (-2) × (-1) × (-2) × (-1) × (-1)

note that (-) × (-) = +

= 1 × 1 × 2 × 2 × (-1)

=1 × 4 × (-1)

=4 × (-1)

now note that (+) × (-) = (-)

=(-4)

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