CBSE Class 10-Mathematics: Chapter – 4 Quadratic Equations Part 7 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 9:

Quadratic equation whose roots are is

(a)

(b)

(c)

(d)

Answer:

(a)

Question 10:

If and are roots of the equation , then equal to

(a)

(b)

(c)

(d)

Answer:

(b)

2 Mark Questions

Question 1:

Solve the following problems given:

(i)

(ii)

Answer:

(i)

(ii)

Question 2:

Find two numbers whose sum is and product is .

Answer:

Let first number be and let second number be

According to given condition, the product of two numbers is .

Therefore,

Therefore, the first number is equal to or

And, second number is or Second number

Therefore, two numbers are and .

Question 3:

Find two consecutive positive integers, sum of whose squares is 365.

Answer:

Let first number be and let second number be

According to given condition,

Dividing equation by

Therefore, first number

Second number

Therefore, two consecutive positive integers are and whose sum of squares is equal to .

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