find the nature of roots of quadratic equation 12x^2 -4√15x +5
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Step-by-step explanation:
D=b^2 - 4ac
=(4√15)^2 - 4 x5 x 12
= 16(15) - 4 x 5 x 3 x 4
= 15(16 - 16)
= 0
real and identical roots
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