If a and b are zeros and quadratic polynomial f ( x) = x² - 4x - 12 , then the value of 1\a + 1\b - ab is ??
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Answer :
-35/3
Explanation :
Sum of zeroes = -b/a = 4
product of zeroes = c/a = -12
= 1/a + 1/b -ab
= (a+b)/ab -ab
= 4/-12 -(-12)
=-1/3 +12
35/3
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