Math, asked by shwetafulari, 5 hours ago

If a + b = 4 and a2 + b2 = 2, Which of the following is the value of ab? Answer: None of the Mentione
9
8
7

Answers

Answered by inferno148

4

Answer:

ab is 7 using algebraic identity

Answered by sriniketmaster2009

0

Answer:

7

Step-by-step explanation:

(a + b)^2=a^2+b^2+2ab=

(4)^2=2+2ab=

16-2=2ab

14=2ab

ab=14/2

ab=7

therefore the value of ab = 7

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