Find the value of k for which the root of the real and equal in each of the following equation: kx2- 2 root 5x+4=0.
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Answer:
kx² - 2√5 + 4
b²- 4ac = 0
(-2√5)² - (4×4×k)
20 - 16k = 0
k= -5/4
hope it helps
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