Question

If Alfa and 1by2 are the zeros of the polynomials
4x square
- 2x + (k-4), find the value of k.​

Answer 1

Answer:

Compare 4x² - 2x + ( k - 4 ) with

ax² + bx + c ,

a = 4 ,

b = - 2 ,

c = k - 4 ,

Product of the zeroes = c/a

Alpha × 1/alpha = ( k - 4 ) / 4

1 = ( k - 4 ) / 4

4 = k - 4

4 + 4 = k

8 = k

Therefore ,

k = 8

.....!!

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

total odd nos between 1-15 ==》7

therefore an odd no = 7/15

total multiple of 5 betwn 1-15 ==》3

therefore mutiple of 5 = 3/15 = 1/5

less than 8 but greater than 3 ==》 4/15

factor of 15 ==》1/15

divisible by 3 nd 2 ==》10/15 ==》2/3

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