Question

if α and β are the zeroes of the polynomial x2 – 7x + 12 then the value of
1/ + 1/ - 2αβ is

Answer 1

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a and b are zeroes of the polynomial f (x) = x2 - 4x - 5

a+b = -b/a=4 and ab =c/a=-5, where a = 1, b = -4, c = -5

Now,

a2 + b2 = (a+b)2 - 2ab

= (4)2 -2(-5)

= 16 + 10

= 26

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Answer 2

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.