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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 2851. |
if x+y+z=0, show that x3 +y3+z3 =3xyz |
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| 2852. |
Find the value of k if x-1 is a factor of p(x)=2x^2+kx+2^1/2 |
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| 2853. |
(x+y)^2--(x^3+y^3) |
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| 2854. |
Excercise 2.3 all questions |
| Answer» | |
| 2855. |
4√3+7√3 |
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Answer» 11root 3 11√3 |
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| 2856. |
600%100 |
| Answer» 600 | |
| 2857. |
Simplify:-(root5-root2)^2 |
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Answer» =5+2-2(root 5)(root 2)=7-2root10 44 |
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| 2858. |
√486/2 - √27/√2 |
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| 2859. |
486/2 - √27/√2 |
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| 2860. |
X+1=0 |
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Answer» sixth x = 0-1x= -1 |
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| 2861. |
Evaluate {(999)sq.-1] |
| Answer» 999^2-1=999^2-1^2=(999^2+1^2)(999^2-1^2){a^2-b^2=(a+b)(a-b)=999+1×999-1=1000×998=998000 | |
| 2862. |
if p-q ispq |
| Answer» No | |
| 2863. |
Find 2 rational and irrational number between root 2 and root u |
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| 2864. |
Show how root 5 can be represented on number line |
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| 2865. |
2x (54x-45) |
| Answer» 2x(54x-45)=2x×54x-2x×45=108x^2-90x. | |
| 2866. |
4x -3x +7 |
| Answer» 2+2 | |
| 2867. |
Which of the following no. Has terminating decimal expansion 1)3/72) 3/53)1/34)3/1 |
| Answer» 1 | |
| 2868. |
7 example of long division method. |
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| 2869. |
2x + 7x -5 |
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Answer» 8x-5x＝5-8x＝3 5/9 x = 5/9. 5/9 |
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| 2870. |
Can anyone help me in solving √2x^2+3x+√2 |
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| 2871. |
What is the square of 25 ? |
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Answer» Square of 25=25×25=625 625 625 |
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| 2872. |
Underroot 4 = 2 .How? |
| Answer» Because when we tacking the factor of 4 are2,2 and root are cut by square so underoot 4 is 2 | |
| 2873. |
What is whole number ? |
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Answer» All natural numbers together with 0 are called whole number The number starts from 0,1,2..... Are called whole numberOr the number in which natural number include 0 are called whole number 1 |
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| 2874. |
288+2 |
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Answer» 290 290 290 290 .290 290 |
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| 2875. |
Rationalise the denominator of 4 by 2+underroot3+underroot7 |
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| 2876. |
Why π(pi) is irrational number? |
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Answer» Correct Because pie is non terminating and non recurring. |
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| 2877. |
X=2×root 3 ,find x cube +1/x cub3. |
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| 2878. |
If x-y=4,y-z=3,x-z=7 then find out x square+y square+z square-xy-yz-zx |
| Answer» 16 +9+49 | |
| 2879. |
2854897+6889756 |
| Answer» 97446553 | |
| 2880. |
If x-y=4,y-z=3,x=7 then find out ,x square+y square+z square-xy-yz-zx=? |
| Answer» If x=7 than y=3,z=14×4+3×3+1×1-4×3-3×1-1×4=16+9+1-12-3-4=26-19=7. | |
| 2881. |
4 puzzule of math |
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| 2882. |
What is mean\'t by axiom number 5 |
| Answer» Axiom number 5 is the whole is greater than the part ???. | |
| 2883. |
Where is percentage chapter |
| Answer» In ncert maths book, there is no % chapter. You will get it in rs aggarrwal. | |
| 2884. |
What is a factor theorem? |
| Answer» First make zero of g(x) then if the remainder comes zero then it is factor theorem | |
| 2885. |
Which is greater among under root 2,3under root 4,4under root 3 |
| Answer» 3 under root 4 | |
| 2886. |
2How to represent -3 _ on a number line?? 3 |
| Answer» Draw a line on left side put -3 -2 -1 0 1 2 3 mark -3 as A that all | |
| 2887. |
X2+10x-2x-20=0 |
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| 2888. |
a+b = a/b+b/a . Find the value of a^ 2 + b^2 |
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| 2889. |
Define irrational numbers |
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Answer» A number that cannot be expressed as a ratio between two integers and is not an imaginary number. If written in decimal notation, an irrational number would have an infinite number of digits to the right of the decimal point, without repetition. Pi and the square root of 2 (√2) are irrational numbers. In which the number non terminating and non repeating the which are no in the form of p/q |
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| 2890. |
Every rational number is |
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Answer» Is a rational number Is a real number |
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| 2891. |
write the smallest rationalisation factor of ✓243 |
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| 2892. |
How to locate√2 on number line |
| Answer» | |
| 2893. |
9+4√5 -1 |
| Answer» 8 + 4 under root 5 | |
| 2894. |
write identity |
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Answer» (1) (a + b)² = a² + 2 ab + b²(2) (a + b)² = (a - b)² + 4 ab(3) (a - b)² = a² - 2 ab + b²(4) (a - b)² = (a + b)² - 4 ab(5) a² - b² = (a + b) (a - b)(6) (x+a) (x+b) =x² + (a + b) x+a b(7) (a+b)³=a³+3a²b+3ab²+b³(8) (a+b)³=a³+b³+3ab(a+b)(9) (a-b)³=a³-3a²b+3ab²-b³(10) (a-b)³=a³-b³-3ab(a-b)(11) a³+b³ = (a+b)(a²-ab+b²)(12) a³+b³=(a+b)³-3 ab(a + b)(13) a³-b³= (a-b)(a²+ab+ b²)(14) a³-b³=(a-b)³ +3ab(a-b)(15) (a+b+c)²= a²+b²+c² +2ab+2bc+2ca(16) (a+b-c)²=a²+b²+c² +2ab-2bc-2ca(17) (a-b+c)²= a²+b²+c²-2ab-2bc+2ca(18) (a-b-c)²= a²+b²+c²-2ab+2bc-2ca(19) a² + b² = (a + b)² - 2ab(20) a² + b² = (a - b)² + 2ab(21) a² + b²=½ [(a+b)²-(a-b)²](22) ab = ¼[(a+b)²- (a - b)²](23) (a + b + c)³ = a³ + b³ + c³ + 3a²b + 3a²c + 3ab² + 3b²c + 3ac² + 3bc² + 6abc(24) (a + b - c)³ = a³ + b³ - c³ + 3a²b - 3a²c + 3ab² - 3b²c + 3ac² + 3bc² - 6abc(25) (a - b + c)³ = a³ - b³ + c³ - 3a²b + 3a²c + 3ab² + 3b²c + 3ac² - 3bc² - 6abc(26) (a - b - c)³ = a³ - b³ - c³ - 3a²b - 3a²c + 3ab² (a+b)^2=a^2+2ab+b^2 |
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| 2895. |
Find irration number between 1÷7 and 2÷7 |
| Answer» 0.140140014000 , 0.404004000 | |
| 2896. |
11x+15y+23=0 7x_2y_20=0 |
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| 2897. |
Represent square root 2 on the real number line |
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| 2898. |
If x=7+4√3 find x^2 +1/x^2 |
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| 2899. |
Cube root 3x -7-5=o how to solve it ? |
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Answer» 3x-12=03x=12x=12/3X=4 X= 4 |
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| 2900. |
A monomial with degree 5 |
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Answer» y to the power 5 x^5 |
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