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СІ23 find the total distance covered bybycar in 20 Minutes, moves witha non-uniform speed of so km/h .for the first 10 Minutes and thenof 영60 km/hr for the. wowonext 10 Minuteswith a speed​

Answer»

Answer:

80 km/hr

Explanation:

Answer:

Given :

kx² - kx + 1 = 0 is the equation.

The above equation has equal roots.

To find :

Appropriate value of k.

Explanation :

As we know that, for a quadratic equations having equal roots, the D ( DISCRIMINANT ) MUST be 0.

And, D = b² - 4ac

⇒ ( - k )² - 4 ( k )( 1 ) = 0

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