If a+b=10 and ab=16 find the …
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Posted by Yug Agnihotri 1 year ago
- 5 answers
Md Taneem Farhad 1 year ago
a+b=10 and ab=16
⇨(a+b)^2= 100
⇨a^2+2ab+b^2=100------(i)
⇨ab=16
⇨-3ab=(-48)---(ii)
⇨a^2+2ab+b^2=100
⇨a^2+2ab+b^2-3ab=100-48
⇨a^2-ab+b^2=52
.... ----------ANOTHER ------------
⇨a+b=10
⇨(a+b)^3=1000
⇨a^3+b^3+3ab(a+b)=1000
⇨a^3+b^3+3×16×10=1000
⇨(a+b)(a^2-ab+b^2)=1000-480
⇨10×(a^2-ab+b^2)=520
⇨a^2-ab+b^2=520/10=52
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Garvit Varshney 1 year ago
1Thank You