Question

evaluate the following products without actual multiplication (1) 999 × 999 (2) 50 ½× 49½​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

The value of 999×999 is

=(1000−1)(1000−1)

=(1000−1)

2

We know that suitable identities (x−y)

2

=x

2

−2xy+y

2

Thus (1000−1)

2

=(1000)

2

−2(1000)(1)+(1)

2

=1000000−2000+1

=998001

Step-by-step explanation:

Q-2