Question

If a and B are the zerooes of the polynomial 2x2 + 7x - 3, then the value of 1/alpha+1/beta

please answer fast​

Answer 1

Answer:

Step-by-step explanation:

2x² + 7x - 3

a= 2, b = 7, c = -3

Sum of roots, α + β = -b/a = -7/2

Product of roots, αβ = c/a = -3/2

1/α + 1/β = α + β / αβ = -7/2 / -3/2 = 7/3.

Answer 2

Answer:

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tu bhi na pagl hai

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tc

Step-by-step explanation:

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. ... Reflection is observed with surface waves in bodies of water. Reflection is observed with many types of electromagnetic wave, besides visible light.