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$a + b = \sqrt{5}$ এবং $a - b = \sqrt{3}$ হলে $a^{2} + b^{2} = ?$

Created: 1 month ago | Updated: 1 month ago

Updated: 1 month ago

8

4

2

1

Explanation

62

Best Ans:

a²+b²

={(a+b)²+(a-b)²}/2 (যেহেতু a+b=√5 এবং a-b=√3 প্রদত্ত)

={(√5)²+(√3)²}/2

={5+3}/2

=8/2

=4 (Ans.)

1 month ago

0 0

Rahana akther

গণিত - Mathematics

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