Heyyy.....
Can u provide the answer to Q21
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Answer:
⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️⬆️
✌hope it could helpful✌
thanks!!
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Answer:
x^2-3x+2=0
Let @=alpha,$=beta.
@+$=3/1=3.
@$=2
- 1/@+1/$=@+$/@$=3/2.
- @^2+$^2=(@+$)^2-2@$=(3)^2-2×2=9-4=5.
- @/$+$/@=@^2+$^2/@$=5/2.
- @^3+$^3=(@+$)^3-3@$(@+$)=(3)^3-3×2×(3)=27-18=9.
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