Question

If both the zeroes of a quadratic polynomial P(x) = a * x ^ 2 + bx + c are positive, then the correct option is​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Whenever light falls on the transition element compounds electrons excite and electrons absorb energy and excite. When these electrons de-excite they release visible light wavelength. That's why transition element compounds exhibit colour.