Question

СІ
23 find the total distance covered by
by
car in 20 Minutes, moves with
a non-uniform speed of so km/h .
for the first 10 Minutes and then
of 영
60 km/hr for the
. wowo
next 10 Minutes
with a speed​

Answer 1

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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