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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.
| 8501. |
The nth terms of AP is 5n+2. Find 19th terms of AP. |
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Answer» 97 630 nth term = 5n +2a19 = 5(19)+2a19 = 95 + 2The 19th term will be 97 |
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| 8502. |
Solve by substituionx+2y-7=0, 2x-y-4=0 |
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Answer» from equation one x=7-2y substitute it in equation twox=3 and y=2 x is equal to 7-2y and then put the value of x in equation second |
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| 8503. |
If the point k-1,2 is equidistant from the point 3,K and K,5 find the value of K |
| Answer» K=4 | |
| 8504. |
what is the farmula of quadratic equation |
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Answer» X=-b+-√b²-4ac/2a x²-(sum of zeroes)x + (product of zeroes) = X2-(sum of the zeroes)x+(product of the zeroes) In algebra, a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term. X square - (sum of zeros ) + ( product of zeroes ) |
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| 8505. |
How to control mind |
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Answer» Solve math problems Thanks Nice question U can control over your mind only when u are able to control your reactions and emotions |
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| 8506. |
What is formula of mean |
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Answer» £ fixi/£ fi £ fixi/£ fi =Σfixi/Σfi Σfixi/Σfi mean formula =Σfixi/Σfi |
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| 8507. |
Write the solution of system of pair of linear equations in two unknowns given by x=7, x=-3. |
| Answer» Type question clearly | |
| 8508. |
Is oswal books good for sample paper of maths ?? |
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Answer» Yes U can also use sample paper books like Apc, ulike and Oswal Yes ,I also use oswaal books Educart and oswal both are best but according to me educart because I also use educart |
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| 8509. |
Definition of even numbers |
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Answer» Numbers that are divisible by 2 are called even numbers. A number which can be expressed in the form 2q where q is a positive integer. Numbers that end with 0,2,4,6 and 8 are even The no which were divisible by 2 are called even numbers Those no who divisible by 2 is called even no |
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| 8510. |
Can i get the oswal sample paper pdf please? |
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Answer» Yes No |
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| 8511. |
Prove that sin³theta +cos³thetha /sinTheta +costhetha =1-sintheta×costhetha |
| Answer» | |
| 8512. |
Ch-5 solutions of ncert in pdf form |
| Answer» You can find it in cbse guide only | |
| 8513. |
1 mark question 10 class chapter 14 |
| Answer» my CBSE guide→maths→ch-14→CBSE important questions→1 mark questions | |
| 8514. |
What will be the parameter of the base of the cubicle watermelon |
| Answer» Please ask question with complete information. | |
| 8515. |
Show that the sum of roots of quadratic equation -x²+3x-3=0 is |
| Answer» Sum is -b/a = -3. | |
| 8516. |
Given an example problem of step deviation method with solution |
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Answer» I am asking to write project. Project works are written from deleted syllabus Step deviation is not in syllabus |
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| 8517. |
Can you tell us the portion of maths for 2021-22 |
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Answer» Deleted portion??http://cbseacademic.nic.in/web_material/CurriculumMain21/revisedsyllabi/Deduction/DELETEDMathematics_Sec_2020-21.pdf Yes Ch-1 ( except Euclid\'s division lemma)Ch-2 ( except long division method)Ch-3Ch-4 (except word problems)Ch-5 ( except daily or value based or word problems based on Sum of n terms)Ch- 6( except ratio and right triangle theorems )Ch-7( except area of triangle)Ch-8 ( except value of some complementary angles)Ch-9Ch-10Ch-11( only related to circles and 1st question of ncert ex 11.1 only )Ch-12Ch-13 ( except frustum of cone)Ch-14 Ch-5 All the chapter nos. are according to NCERT book. No |
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| 8518. |
How we know that these questions is solving by the lcm and HCF . How can we find.... |
| Answer» If you find minimum in question then it is lcm and if maximum in question then it is hcf | |
| 8519. |
Prime factors of 140 and 7429 |
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Answer» 140 = 2*2*5*7 : 7429=17*19*23 Ok thank you 140=2*2*5*77429=17*19*23Okay... Plz give me answer |
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| 8520. |
Check whether 6 can end with the digit 0 for any natural number n |
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Answer» Thank you If 6^n is to end with zero (where n is a natural number), it has to be a multiple of 5. That is 6^n should have a prime factor 5. However, this number can only be written as 2^3n or 3^2n so, 5is not there in the prime factorisation. Therefore, the uniqueness of the fundamental theorem of arithmetic guarantees that 5 cannot be a factor of the number. So, 6^n cannot end with 0. Plz give me answer and explain this plz |
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| 8521. |
Express the following in the form of p/q where p and q are integers and q≠0 0.2341 and bar on 2341 |
| Answer» 0.2341 in p/q form is 2341/10000 | |
| 8522. |
After how many decimal places 3256/2×5 power 3 will terminate? |
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Answer» After 3 decimal places. Check the degree of the denominator, it is an easy method. After 3 After 3 the answer would be 3.256 |
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| 8523. |
sec70sin20+sec20sin70=2 |
| Answer» | |
| 8524. |
Send me all chapters wise important formulas |
| Answer» | |
| 8525. |
What is prime numbers ? |
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Answer» Prime numbers are those number whose factor is 1 Prime number is a number that can be divided exactly only by itself and 1, for example 3,5,7 I hope this will help you? |
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| 8526. |
Prove that the point (0,0),(5,5),(-5,5) are the vertices of a right angled isosceles triangle |
| Answer» https://brainly.in/question/2363305 (Check this site for the answer) | |
| 8527. |
Find the 11th term from the end in the AP 56,63,70,......,329. |
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Answer» If yoy want to find 11th term from end of AP,thenReverse the series means your last term be first term and common difference willget multiplied with (-1)After all this you will have a=329,d=-7and, l=56,then find 11th term by using formula: a+10d329+10(-7)=329-70=259 Nhi pta mujhe lol Thanks Sakshi al=l-(n-1)dA11=329-(11-1).7A11=329-70A11=259 |
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| 8528. |
Find the nature of roots 1) x^2- 8x + 16 = 02) 2x^2 - 2x + 1= 0 |
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Answer» 2) a = 2, b = -2, c = 1 D = b^2 - 4ac D = (-2)^2 - 4 x 2 x 1 D = 4 - 8 D = -4 Therefore, there are no real roots. 1) a = 1, b = -8, c = 16 D = b^2 - 4ac D = (-8)^2 - 4 x 1 x 16 D = 64 - 64 D = 0 Therefore, there are real and equal roots. |
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| 8529. |
Form the quadratic polynomials, whose zeroes are given below:2/3 and-1/3 |
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Answer» x2-2x-1 is quadratic equation Alpha=2/3Beta=-1/3Alpha+beta=2/3-1/3 =1/3Alphaxbeta=2/3×1/3 =2/9=X²-(alpha+beta)x+(alphabeta)=X²-1/3x+2/9=(9x²-3x+2÷9)k=let k be 9 Therefore, 9x²-3x+2 is theQuadratic equations Please reply guys |
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| 8530. |
If the sum of the zeroes of the quadratic polynomial 3x2-kx+6 is 3, then find the value of k. |
| Answer» Sum of zeroes =-b/a 3=k/3K=3*3K=9 | |
| 8531. |
Chapter 13 surface area and volume exercise |
| Answer» Which exercise? | |
| 8532. |
If secA=x+1/4x, prove that secA+tanA=2x or 1/2x? |
| Answer» | |
| 8533. |
If the polynomial ax3 +bx - c is divisible by x2 + bx +c then c =? |
| Answer» This question is out of syllabus. | |
| 8534. |
Find the roots of the following quadratic equation by factorisation 1. X²-3x-10=0 |
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Answer» x²-5x+2x-10=0 x(x-5) +2(x-5) = 0 (x-5) (x+2) = 0 (x-5) =0 or (x+2) =0 x=5 or x= -2 => x²-5x+2x-10=0 => x(x-5) +2(x-5) = 0=> (x-5) (x+2) = 0 => (x-5) =0 or (x+2) =0=> x=5 or x= -2 x²-5x+2x-10=0x(x-5) +2(x-5) = 0(x-5) (x+2) = 0(x-5) =0 or (x+2) =0x=5 or x= -2 |
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| 8535. |
For what value of theta Cot 30°= cot(30°+theta ) |
| Answer» | |
| 8536. |
If x+a is a factor of 2x²+2ax +5x+10 then find the value of a |
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Answer» 2 2 2 |
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| 8537. |
A black die and a white die are thrown at the same time. Write all the possible outcomes. |
| Answer» Total no. of possible outcomes when 2 dice are thrown = 6×6 = 36 which are { (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6) (3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6) (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4, 6) (5, 1) (5, 2) (5, 3) (5, 4) (5, 5) (5, 6) (6, 1) (6, 2) (6, 3) (6, 4) (6, 5) (6, 6) } Read more on Sarthaks.com - https://www.sarthaks.com/102242/black-white-die-are-thrown-the-same-time-write-all-the-possible-outcomes-what-probability | |
| 8538. |
If cosec theta + cot theta =m then m2-1/m2+1 |
| Answer» https://brainly.in/question/3074643 Visit this site for the answer. | |
| 8539. |
If one of the zeroes of the quadratic polynomial x2 + 3x + k is 2, then the value of k is: |
| Answer» -10 | |
| 8540. |
How To solve trignometry |
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Answer» As much practice you will do ...that much it will be easy to solve ques of trigonometry Yes, Because Shashank Dubey is right By memorizing table and chart and by practice |
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| 8541. |
A+B=18A-B=16 |
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Answer» B=1 A = 17 B=1and A=17 A+B=18‐‐‐1A-B=16---2(Adding eq1 and eq2)2A=34A=17(Putting the value of A in eq1)17+B=18B=18-17B=1:-A=17 and B=1By elimination method A+B=18---1 +A-B=06=2A=24A=24÷2A=12 Putting value in eqñ-112+B=18B=18-12 B=6This method is called elimination method of solving pair of linear eqñ in two variables |
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| 8542. |
A hall has dimensions 32m by 20m |
| Answer» | |
| 8543. |
Sin(a-b)=1/2cos(a+b)=1/2 |
| Answer» This question is wrong. | |
| 8544. |
to find the width of a pathway and the height of building using geometrical properties |
| Answer» | |
| 8545. |
The following distribution give the daily income of 50 works of a factory daily in come in rupees |
| Answer» | |
| 8546. |
Find A |
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Answer» ?? Answer Read full question below Ya Traser hunt ? chupan chupai khel rhe Ho kya ? |
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| 8547. |
Show that the points (a,a),(-a,-a),(root3a,root3a) are the vertices of an equilateral triangle. |
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Answer» Thank u Let , A (a,a) B (a,-a)& C (√3a,√3a)Now use distance formula :-=> √(x2-x1)² + (y2-y1)²to find dist AB => √(a-a)² + (-a-a)²=>√(0)² + (-2a)²=>√4a²=> 2a NOTE :- from similar method you have to find distance (BC) & distance (AC) Don\'t miss the step ⬆️:- If AB = BC or AC = BC or AB = AC then it is isosceles ΔHOPE FRIEND THIS WILL HELP YOU :) |
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| 8548. |
12n cannot end with digit 0 or 5 for any natural number |
| Answer» | |
| 8549. |
Write 0.0265265265265.... in p/q form |
| Answer» | |
| 8550. |
If n-1 is the root of the equation X2+6x+7 find bothe the roots |
| Answer» In place of n-1 it would be x-1p(x)= x^2 +6x +7x-1 =0x=1p(1)= 1^2 + 6×1 + 7 = 2+6+7 =15Hence both roots are 15 and 1 | |