Question

find the value of K, for which Quad.
2x²+kx-4 =0 has Real Roots​

Answer 1

Step-by-step explanation:

Given:The equation has real roots.

DiscriminantΔ=b

2

−4ac>0 where a=1,b=−2,c=k

⇒(−2)

2

−4×1×k>0

⇒4−4k>0

⇒4(1−k)>0

⇒k−1<0

⇒k<1

∴k∈(−∞,1)

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