Saved Bookmarks
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.
| 22251. |
find value of k for which one root of the quadratic equation kx2-14x+8 is six times d other |
|
Answer» Most wlcm Take alpha equal to 6 beta and put alpha +beta equal to - b/a and alphabeta equal to c/a than u will get two equations. U just need to solve that. K is equal to 3 |
|
| 22252. |
√x+y =9x+√y=11Find x and y |
| Answer» | |
| 22253. |
Why root 2 is a irrational no. |
| Answer» As it has non terminating and non Repeating decimal expansion which can be said by performing long division | |
| 22254. |
How to pass in maths |
| Answer» Practice makes a man perfect | |
| 22255. |
State fundamental theorem of algorithm |
|
Answer» P (x) = g (x).q (x)+r (x). Anyone is online???? Koi gal nahi .. Sorry its the fundamental theorem of arithmetic. H.c.f(a,b)×l.c.m(a,b) = a×b The multiplications of positive integers.. |
|
| 22256. |
Basic propertional theorm |
| Answer» It states that in a triangle a line drawn parallel to 1 side of a trianfle intersects the other 2 sides at 2 distinct points and the sides would be divided in equal ratio. Also known as thales theorem | |
| 22257. |
What is the multiple of 3 |
| Answer» A number that can be divide by 3 withiout any remainder | |
| 22258. |
Exams ki preparation |
| Answer» | |
| 22259. |
Pls tell ncert imp. Question |
|
Answer» Only theorms??? All theorms |
|
| 22260. |
Find the slope and y_intercept of the line y =3x-5 |
| Answer» Slope class 10 mein nhi padhna | |
| 22261. |
16/x-10/x=27 |
|
Answer» 6/27 Let 1/x = p. Then the equation will be 16p-10p=27. 6p=27. Here, p=9/2. Now, 1/x=p therefore 1/x=9/2. Hence the value of x is 2/9 |
|
| 22262. |
If two vertices of an equilateral triangle be (0,0), (3,√3) find the third vertex |
|
Answer» Make the fig on a cartesian plane keep 1 vertex on origin and also draw an altitude on 1 side As it is an equilateral triangle its all sides are equal, take, AB= AC,form an equation, and AB=BC another equation solve it. A(0,0) B(3,root3) C(x,y) Can be solved by using distance formula. A(0,0) B(3,√3) C(x,y)Equate AB=BC=AC Pls koi answer karo urgent h |
|
| 22263. |
Write the value of cotsquare -1/sinsquare |
|
Answer» -1 -1 -1 |
|
| 22264. |
Cosec A + Cot A =2/3 then find cos A |
|
Answer» Kaisse solve hoga ye Mere se ni ho rha.Plzzz anyone solve this. 5/13 is the right answer. How.... 5/13 Kya ye shi answer hai..... CosA=-11/13. Koi online hPlzzz answer me guyss |
|
| 22265. |
If nth term of an AP is (2n+1),what is the sum of its first three terms? |
| Answer» 15 | |
| 22266. |
Proove that root5 is irrrational |
|
Answer» Let us assume that √5 is a rational number.we know that the rational numbers are in the form of p/q form where p,q are intezers.so, √5 = p/q p = √5qWe know that \'p\' is a rational number. so √5 q must be rational since it equals to pbut it doesnt occurs with √5 since its not an intezerTherefore, p =\xa0√5qthis contradicts the fact that √5 is an irrational number.Hence our assumption is wrong and √5 is an irrational number. ye kesa answer h 10 |
|
| 22267. |
Traingal pqr me pq=1.2cm rq=2.4cm find the value of angel q |
| Answer» It can have infinite values | |
| 22268. |
Find the value of angel q |
| Answer» | |
| 22269. |
SinA ( 1+tanA)+cosA (1+cotA) = secA + cosecA |
| Answer» | |
| 22270. |
In any AP find the negative number |
| Answer» First find the term which will be zero if it comes in decimal or natural no. Just took next natural no. | |
| 22271. |
Empirical relationship between the three measures of central tendancy is what? |
|
Answer» 3 median = 2 mean + mode Mode=3median-2mean Aniket and honey are ryt 3median-2mean=mode 3median=mode+2mean i think so |
|
| 22272. |
The ordinate of a point A on the y-axis is 5 and B has coordinate (-3,1),then find the length of AB |
| Answer» Take x-coordinate as 0 therefore the coordinates of A are (0,5).Now use distance formula.The answer is 5 units | |
| 22273. |
If the sum of edge of a cube is 24 cm then find its surface area |
|
Answer» It was volume tsa is 24 cm sq. 8 cm cube |
|
| 22274. |
Find the value of K, for which one root of the equation kx²-5kx+8=0 is 2 |
|
Answer» Putting X=2 in eqn4k-10k+8=0-6k=-8k=4/3 K=4/3... 4/3 |
|
| 22275. |
If thita =1√7 then find cosec^2thita-sin^2thita/cosec^2thita+sec^2thita? |
| Answer» Take X=thetatan X=1/√7sec^2x=1+1/7=8/7Cos^2x=7/8Sin^2x=1-7/8=1/8 ,cosec^2x=8/1So the expression is=8/1-(1/8)/(8)+8/7=8/1-1/64+8/7=(3584-7+512)/64=4089/64=63.89\xa0 | |
| 22276. |
Calculate the value of tan30degrees geometrically |
| Answer» | |
| 22277. |
What isradii |
|
Answer» Radii is the distance from the center pf circle The distance from the centre of the circle... Plural of radius |
|
| 22278. |
Where to find this formula of AP series:tn=sn-sn-1 |
| Answer» | |
| 22279. |
Marking scheme of each chapter of maths |
| Answer» Check syllabus for marking scheme :\xa0https://mycbseguide.com/cbse-syllabus.html | |
| 22280. |
Plz tell us blue print of cbse board paper |
| Answer» | |
| 22281. |
The sum of first P, Q, R terms of an AP are a,b,c. Show that a/p(q-r)+b/q(r-p)+c/r(p-q)=0. |
|
Answer» This question is not from class 11 .It is from class 10 . The following solution is here : a=sum of p term a=p/2{2A+(p-1)D}2a/p={2A+(p-1)D}.........…..…...........….(1)b=sum of q termb=q/2{2A (q-1)D}2b/q={2A+(q-1)D}.…..........................(2)& c = ,sum of r term2c/r={2A +(r-1)D } ...….....…............(3)Multiplying (1) ,(2) &(3) by ,(q - r),(r - p) ,(p -q) &add , we get2a/p(q-r)+2b/q(r-p)+2c/r(p-q) 2A×0+D×0=0 Chapter = 9....sequence and series..... Question no. 11 This question is from class 11..........chapter 9 ....ex = 9.2...........so i can not do it... |
|
| 22282. |
Find the value of "k" if the equation is 2x+kx+3=0 how to do this question |
|
Answer» Answer is coming as k=root of -24 put the value in formula of discriminant:-D = b^2 - 4ac Yes aditya is correct Nothing D you put only a b and c Find D or discriminant apply D = b2 - 4ac |
|
| 22283. |
Gbvvvx gg |
|
Answer» Anyone online Means? |
|
| 22284. |
____ + ___ = 8 + +____ -- ___ = 6 = = 13 8 |
| Answer» | |
| 22285. |
The nth term of an AP is given by - 4n+15 . find first 20 terms of these AP. |
|
Answer» Ek or question h Thnks kabir ji Sorry first 20 terms are 11,7,3,-1,-5,-9,-13,-17,-21,-25,-29,-33,-37,-41, -45,-49,-53,-57,-61,-65... Put n=1,2,3 In -4n+15A1 = -4*1+15 =11 A2. =-4*2+15=7. A3 =-4*3+15 =3. D= A2 - A1 D= 7 -11 =-4A20. = A1 + 19D = 11+(19*-4) = 11-76 -65.... Solution pls -65.... |
|
| 22286. |
Is that 2+x=0 x=-2?????? Why? |
| Answer» 2+×=0 so ×=-2 | |
| 22287. |
Why the number on side of equal to go to other side by changing its sign |
| Answer» | |
| 22288. |
Find the number of points where graph of the polynomial f(x)=x^3-2x^2+x, meets the x-axis. |
| Answer» | |
| 22289. |
Find the distance between origin and a point p(x,y) |
|
Answer» x square + y square whole root over. As coordinate of origin Q(0,0). Put the distance formula Root xsq.+ysq. √x^2+y^2 |
|
| 22290. |
If (1,p- |
|
Answer» What is it question man Complete your question ..... |
|
| 22291. |
CosA/1-tanA+sinA/1-cotA=sinA+cosA |
| Answer» LHS=cosA/(1-tanA)+sinA/(1-cotA)=cos\xa0A/(1 - sin\xa0A/cos A) + sin A/(1 - cos A/sin A)=cos²A/ (cos A - sin A) + sin²A / (sin A - cos A)=cos²A/ (cos A - sin A) - sin²A / (cos A - sin A)=(cos ² A - sin ² A) / (cos A - sin A)=(cos A - sin A)(cos A + sin A) / (cos A - sin A)=cos A + sin A i.e RHSRead more on Brainly.in - https://brainly.in/question/1346932#readmore | |
| 22292. |
Find the value of sin (39 degree + thita) - cos ( 51 degree - that\'s) |
|
Answer» Sorry...its not hace used...its have used#myans Ans is 0> Sin(39+Q)-cos(51-Q)Cos(90-(39+Q))-cos(51-Q)Cos(90-39-Q)-cos(51-Q)Cos(51-Q)-cos(51-Q)**hace used Q in place theta Sorry it\'s thita instead of that\'s |
|
| 22293. |
Find the distance of point (-1,3) from the y-axis |
|
Answer» Thanks 1 unit |
|
| 22294. |
Evaluate tan65 degree - cot 25 degree? |
|
Answer» 0 Tan(90-65)°-cot25°Cot25°-cot25°0 ans. 1 0 |
|
| 22295. |
Prove that root under 5 is irrational number with perfect concept |
| Answer» Let us assume that\xa0√5 is rational\xa0Then\xa0√5 = (a and b are co primes, with only 1 common factor and b≠0)\xa0⇒\xa0√5 = (cross multiply)\xa0⇒ a =\xa0√5b\xa0⇒ a² = 5b² ------->\xa0α⇒ 5/a²\xa0(by theorem if p divides q then p can also divide q²)\xa0⇒ 5/a ----> 1\xa0⇒ a = 5c\xa0(squaring on both sides)\xa0⇒ a² = 25c² ---->\xa0β\xa0From equations\xa0α and\xa0β\xa0⇒ 5b² = 25c²⇒ b² = 5c²\xa0⇒ 5/b²\xa0(again by theorem)\xa0⇒ 5/b-------> 2\xa0we know that a and b are co-primes having only 1 common factor but from 1 and 2 we can that it is wrong.\xa0This contradiction arises because we assumed that\xa0√5 is a rational number\xa0∴ our assumption is wrong\xa0∴\xa0√5 is irrational number | |
| 22296. |
Friends my math is weak but my all subjects is good can any one help me to improve my maths |
|
Answer» 1st solve NCERT atleast 2 ya 3 baar than u can easily score 80% above in mathematics Practise makes a man perfect....?? Practise n practise |
|
| 22297. |
What is adfected quadratic equation . Write the standard of it. |
|
Answer» What is adfected It is the equation having the highest power 2 .Standard form is ax2 + bx + c |
|
| 22298. |
If the common difference of an ap is -6find a16-a12 |
|
Answer» -24 -24 |
|
| 22299. |
If the height and radius of a cone of volume V are doubled, find the volume of the cone |
| Answer» V=1/3πr2hputting 2r for r and 2h for hV1=1/3π{2r}^2(2h)=1/3π(4r^2)(2h)V1=8VHence volume becomes 8times | |
| 22300. |
In an equilateral traingle of side 24 cm find the length of the altitude |
|
Answer» 12 root 3 Altitude of the equilateral triangle = √3/2 (side)= √3/2 (24)= 24√3/2= 12√3 cm |
|