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प्रश्न
If p + q = 8 and p - q = 4, find:
p2 + q2
बेरीज
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उत्तर
Putting pq = 12 in (i) we get :
p2 + q2
= 64 - 2(12)
= 64 - 24
= 40.
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If p + q = 8 and p - q = 4, find:
p2 + q2
Putting pq = 12 in (i) we get :
p2 + q2
= 64 - 2(12)
= 64 - 24
= 40.