Math, asked by shrishtisahite78, 6 months ago

please please yeh sabh

sare kr do

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Answers

Answered by ridhimasaini1611

1

Answer:

1) 1680

2) 800

3) 3321

4) 1.2

Step-by-step explanation:

1) 67²- 53²

(67x67)-(53x53)

4489-2809

=1680

2) 102²-98²

(102x102)-(98x98)

10404-9604

=800

3) (9x6+7)²-(9x2+2)²

61²-20²

3721-400

=3321

4) 1.7²-1.3²

2.89-1.69

=1.2

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