Question

Can any one give extra questions from class 9 maths

Answer 1

Answer:

Find 5 rational numbers between 5 and 6 this is my question

Answer 2

Topic:- Number System

Q.1: Find five rational numbers between 1 and 2. [Answer: 7/6, 8/6, 9/6, 10/6, 11/6]

Q.2: Find five rational numbers between 3/5 and 4/5. [Answer: 19/30, 20/30, 21/30, 22/30, 23/30]

Q.3: Locate √3 on the number line.

Q.4: Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number.

Q.5: Find the decimal expansions of 10/3, 7/8 and 1/7.

Q.6: Show that 0.3333…=0.3¯ can be expressed in the form p/q, where p and q are integers and q ≠ 0.

Q.7: What can the maximum number of digits be in the repeating block of digits in the decimal expansion of 1/17? Perform the division to check your answer.

Q.8: Find three different irrational numbers between the rational numbers 5/7 and 9/11. [Answer: 0.720720072000.., 0.730730073000…, 0.808008000…]

Q.9: Visualise 3.765 on the number line, using successive magnification

Q.10: Add 2√2+ 5√3 and √2 – 3√3. [Answer: 3√2 + 2√3]

Q.11: Simplify: (√3+√7) (√3-√7). [Answer: -4]

Q.12: Rationalise the denominator of 1/[7+3√3].

Q.13: Represent √(9.3) on the number line.

Q.14: Simplify:

(i)7 2/3.71/5

2/3.71/5(ii)101/2/101/4

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Topic:- Polynomials

1. Give an example of a monomial and a binomial having degrees as 82 and 99, respectively.

2. Compute the value of 9x2 + 4y2 if xy = 6 and 3x + 2y = 12.

3. Find the value of the polynomial 5x – 4x2 + 3 at x = 2 and x = –1

4. Calculate the perimeter of a rectangle whose area is 25x2 – 35x + 12.

5. Find the value of x3 + y3 + z3 – 3xyz if x2 + y2 + z2 = 83 and x + y + z = 15

Topic:- Coordinate Geometry

1. Write the coordinates of each of the points P, Q, R, S, T and O from the figure given.(1st Figure in attachment)

Q.2: Plot the following points and check whether they are collinear or not:(i) (1, 3), (– 1, – 1), (– 2, – 3)(ii) (1, 1), (2, – 3), (– 1, – 2)(iii) (0, 0), (2, 2), (5, 5)

Q.3: Without plotting the points indicate the quadrant in which they will lie, if(i) the ordinate is 5 and abscissa is – 3(ii) the abscissa is – 5 and ordinate is – 3(iii) the abscissa is – 5 and ordinate is 3(iv) the ordinate is 5 and abscissa is 3

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