if a-b=3and a2 +b2=29,then fnd the value of ab
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→given:
a-b = 3
a²+b² = 29
→ To find:
value of ab
→ Identity
(a-b)² = a²+b²-2ab
by putting the values
(3)² = 29-2ab
9 = 29 -2ab
2ab = 29-8
2ab = 20
ab = 20/2
→ ab = 10
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