Q1 of 87 Page 53

Choose the correct answer for the following question.

Out of the following equations which one is not a quadratic equation?

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In all other options highest degree of equation is 2, which also the degree of quadratic equation. But in Option A, degree of polynomial is 1

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10

In the adjoining fig. □ABCD is a trapezium AB||CD and its area is 33 cm2. From the information given in the figure find the lengths of all sides of the □ABCD. Fill in the empty boxes to get the solution.

 1

Choose the correct answer for the following question.

Which one is the quadratic equation?

 1

Choose the correct answer for the following question.

The roots of x2 + kx + k = 0 are real and equal, find k.

 1

Choose the correct answer for the following question.

For find the value of the discriminant.