Given that x 2+2kx+4k-3 = 0 has no real roots, show that k satisfies k
2
-4k+3 < 0

for unreal roots: b² < 4ac

• b is 2k

• a is 0

• c is 4k - 1

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

i dont know sorry

step-by-step explanation: