If alpha and beta are the zeroes of polynomial 6x2+x-1 then find the value of i) alpha cube beta + alpha beta cube
aadilowaise100:
hi
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Hey friend here is your answer
a+b=-1/6. &ab=-1/6
value of power 3+power
=(a+b)(a2+b2-ab)
on finding value of a2+b2=(a+b)2-2ab
putting value
=(-1/6)2-2×1/6
=1/36-1/3=-11/36
again putting value
(-1/6)(-11/36+1/6)
=5/216
Hope it will help you
a+b=-1/6. &ab=-1/6
value of power 3+power
=(a+b)(a2+b2-ab)
on finding value of a2+b2=(a+b)2-2ab
putting value
=(-1/6)2-2×1/6
=1/36-1/3=-11/36
again putting value
(-1/6)(-11/36+1/6)
=5/216
Hope it will help you
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