Math, asked by Bantishaikh7440, 3 months ago

If AB =1
A² + B²=9. Find A-B

Answers

Answered by sushmitamch
0

Answer:

a2+b2=9 a+b=1 a4+b4=?​. 1. See answer. Add answer+5 ... a+b=1. (a+b)²=1². a²+b²+2ab=1. 9+2ab=1. ab=4. a²b²=16. given,. a²+b²=9 ... pencils Rs 1. 10 each . if altogether two dozen pencil cost Rs . 21 .

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