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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.
| 26401. |
Find the value of k if the quadratic equation 3xsq -k root 3 +4 = 0 has equal roots |
| Answer» Ye yaha pe \'sq\' kya hai... Kuch samjh nhi aa rha hai | |
| 26402. |
write the expression a number multiplied by -3 |
| Answer» | |
| 26403. |
Complete the following factors tree and find the composite number x and y |
| Answer» | |
| 26404. |
Find mean |
| Answer» sigmafx/sigmaf | |
| 26405. |
If pont A a,,0 B x,y abd C0,b are collinear show that x/a+y/b=1 |
| Answer» If a point (X,Y) lies on a line joining the points A (x1,y1) and B (x2,y2) the equation of the line is given by{tex}\\frac{y-y_{1}}{x-x_{1}}=\\frac{y_{2}-y_{1}}{x_{2}-x_{1}}{/tex}Point P(x,y) lies on the line joining the points A (a,0) and B (0,b). So{tex}\\frac{y-0}{x-a}=\\frac{b-0}{0-a}{/tex}{tex}\\Rightarrow{/tex}\xa0{tex}\\frac{y}{x-a}=-\\frac{b}{a}{/tex}{tex}\\Rightarrow{/tex}\xa0{tex}a y=-b(x-a){/tex}{tex}\\Rightarrow{/tex}\xa0{tex}a y=-b x+a b{/tex}{tex}\\Rightarrow{/tex}\xa0{tex}a y+b x=a b{/tex}divide both side by ab{tex}\\Rightarrow{/tex}\xa0{tex}\\frac{a y}{a b}+\\frac{b x}{a b}=\\frac{a b}{a b}{/tex}{tex}\\Rightarrow{/tex}\xa0{tex}\\frac{y}{b}+\\frac{x}{a}{/tex}= 1 (proved) | |
| 26406. |
If HCF (a, b) =12 and a ×b) 1,800 then find LCM (a, b) |
| Answer» 150 | |
| 26407. |
Jo brianly pr h apni id batao |
| Answer» | |
| 26408. |
(a-b)x square_(b_c)x+(c_a)=0Prove that 2a=b+c |
| Answer» We have (a-b)x2 + (b-c)x + (c-a) = 0Here A\xa0= (a-b), B\xa0= (b-c), C= (c-a){tex}\\therefore D = B^2 - 4AC = (b-c)^2 - 4(a-b) (c-a){/tex}For equal roots, D = 0{tex}\\implies{/tex}(b-c)2 - 4 (a-b) (c-a) = 0b2+c2-2bc -4(ac-a2-bc+ab) =0b2+c2-2bc -4ac+4a2+4bc-4ab=04a2+b2+c2+2bc-4ab-4ac=0(2a-b-c)2=0i.e. 2a-b-c =0Hence, b + c = 2a or 2a = b + c | |
| 26409. |
Any girl wanna my girl friend? |
| Answer» | |
| 26410. |
Any idea about datesheet |
| Answer» Check datesheet here :\xa0https://mycbseguide.com/cbse-datesheet.html | |
| 26411. |
How much CGPA you all got in 9th class? |
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Answer» A1 My is grade |
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| 26412. |
What do u think guys when board is released date sheet? |
| Answer» | |
| 26413. |
Has CBSE released datesheet |
| Answer» | |
| 26414. |
Solve the following quadratic eqn for x and give your answer correct to two decimal places x2-3x-9=0 |
| Answer» | |
| 26415. |
What is xi |
| Answer» Greek 14th letter .... | |
| 26416. |
In an a.p. if sn=n{4n+1},then find the a.p. |
| Answer» | |
| 26417. |
What is the frustum |
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Answer» Simply a bucket,when a smaller cone is cut parallel to its base ,from a larger cone the lower part is frustum Addition of cone or cylinder for example bucket |
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| 26418. |
Explain all the theorems |
| Answer» | |
| 26419. |
Prove the tea formula of sphere |
| Answer» | |
| 26420. |
abcd is quadrilateral in which two quadrant having side 6cm find area of saded part |
| Answer» 18Π-36cm² | |
| 26421. |
If x+k is the GCD of X2-2x-15 and x2+27.then find the value of k??? |
| Answer» | |
| 26422. |
Solve: p (h×h-2×p×p)÷b (2×b×b-h×h) |
| Answer» | |
| 26423. |
The sum of first 9 term of an ap is 351 and the first 20 term is 1770 find +he first term |
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Answer» Make two equation Easy h ..try once more Form two eq nd get vulue of a |
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| 26424. |
Circles theorem |
| Answer» | |
| 26425. |
if the point P(x,y) is equidistant from L(5,1) and M(-1,5) .find the relation between x and y |
| Answer» Section formula lagega jisme m1 & m2 = 1.Because ye equidistant h | |
| 26426. |
2_55555 |
| Answer» ? | |
| 26427. |
1+2 1+2 =1,61+2How these possible |
| Answer» Error | |
| 26428. |
what is the value root 3 |
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Answer» 1.73 1.732 smthing like this |
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| 26429. |
Cosecq+ cot q=x. Find value of cosecq-cotq |
| Answer» Multiply and divide by cosecq-cotq in LHS | |
| 26430. |
Ncert class 10th exercise 12 |
| Answer» Just put the formula and clear the concept that what is going to be add or subtract . | |
| 26431. |
In an AP the sum of first 10 terms is -150 and the sum of it\'s next 10 terms is -550 find the AP. |
| Answer» So easy ?? | |
| 26432. |
The roots of the equation x |
| Answer» | |
| 26433. |
Is sal ka sample paper 2018 milega kya maths |
| Answer» You can check sample papers here :\xa0https://mycbseguide.com/cbse-sample-papers.html | |
| 26434. |
Time table release howa ki nhi bhai loog |
|
Answer» Kab tak hoga kuch idea h Nhi bhau |
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| 26435. |
Sin^3-cos^3/sin,-cos |
| Answer» 1+sin.cos | |
| 26436. |
Solve: 9xsquare----9(a+b)x+(2a square+5ab+2b square) |
| Answer» D = b2 - 4ac{tex}= ( - 9 ( a + b ) ) ^ { 2 } - 4 \\times 9 \\times \\left( 2 a ^ { 2 } + 5 a b + 2 a b ^ { 2 } \\right){/tex}= 81(a + b)2 - 36(2a2 + 5ab + 2b2)= 9[9(a2 + b2 + 2ab - 8a2 - 20ab - 8b2)]= 9[a2 + b2 - 2ab]= 9(a - b)2{tex}x = \\frac { - b \\pm \\sqrt { D } } { 2 a } = \\frac { 9 ( a + b ) \\pm \\sqrt { 9 ( a - b ) ^ { 2 } } } { 2 \\times 9 }{/tex}{tex}{ \\Rightarrow x = 3 \\frac { [ 3 ( a + b ) \\pm ( a - b ) ] } { 2 \\times 9 } }{/tex}{tex}{ \\Rightarrow x = \\frac { ( 3 a + 3 b ) \\pm ( a - b ) } { 6 } }{/tex}{tex}\\Rightarrow x = \\frac { 3 a + 3 b + a - b } { 6 } \\text { or } x = \\frac { 3 a + 3 b - a + b } { 6 }{/tex}{tex}\\Rightarrow x = \\frac { 4 a + 2 b } { 6 } \\text { or } x = \\frac { 2 a + 4 b } { 6 }{/tex}{tex}\\Rightarrow x = \\frac { 2 a + b } { 3 } \\text { or } x = \\frac { a + 2 b } { 3 }{/tex} | |
| 26437. |
cosec theta-cos theta=m show that m2-1/m2+1=cos theta |
| Answer» | |
| 26438. |
Explain why (17*5*11*3*2+2*11), is a composite number. |
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Answer» 22 bhar kesa aaya 22(17*5*1*3*1+1*1)=22(256)Here it has factors other than itself.hence,it is a composite no. |
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| 26439. |
ABC is a isosceles triangle with AB as hypotenuse find cos2B-1 |
| Answer» Is it -sin2B | |
| 26440. |
From.which book the CBSE class 10 paper will come of math |
| Answer» "ABD" by PK GARGMostly maths exams come from this book | |
| 26441. |
The 7th term of an is-4and its 13th term is -16.find the ap |
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Answer» 8,6,4,2 The AP will be 8,6,4,2,.... A+6d=-4. Equation 1A+16d=-16. Equation2Solve by eliminatin method after we get a and d the we find a for find a2 we use a2=a+d put value from eq1 and 2 then we esily find ap |
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| 26442. |
Is -1 a term of an AP 27,23,19,......-65 ?justify. |
| Answer» Yes,8th term will be -1 | |
| 26443. |
Rhombus circumscribing a parallelogram |
| Answer» Given ABCD is a parallelogram in which all the sides touch a given circleTo prove:- ABCD is a rhombusProof:-{tex}\\because{/tex}\xa0ABCD is a parallelogram{tex}\\therefore{/tex}\xa0AB = DC and AD = BCAgain AP, AQ are tangents to the circle from the point A{tex}\\therefore{/tex}\xa0AP = AQSimilarly, BR = BQCR = CSDP = DS{tex}\\therefore{/tex}(AP + DP) + (BR + CR) = AQ + DS + BQ + CS = (AQ + BQ) + (CS + DS){tex}\\Rightarrow{/tex}\xa0AD + BC = AB + DC{tex}\\Rightarrow{/tex}\xa0BC + BC = AB + AB [{tex}\\because{/tex} AB = DC, AD = BC]{tex}\\Rightarrow{/tex}\xa02BC = 2AB{tex}\\Rightarrow{/tex}\xa0BC = ABHence, parallelogram ABCD is a rhombus | |
| 26444. |
Find the volume of a frustum of a cone whose height is 4m and radii of the ends are 7m and 4m. |
| Answer» | |
| 26445. |
What is the value of k . If K + 9 ,2k-1,2k+7 are three consecutive terms of an ap |
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Answer» K=18 18 |
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| 26446. |
Find relation between X and Y bear x, y, 1, 2 and 40 are collinear points |
| Answer» | |
| 26447. |
If the product of two number is 3691 and LCM is 3691 find the HCF ? |
| Answer» HCF=1 | |
| 26448. |
The volume of a hemisphere is 2425 one by two cm3 find its curved surface area |
| Answer» As, volume of hemisphere = 2425{tex}\\frac { 1 } { 2 } c m ^ { 3 }{/tex}{tex}\\Rightarrow \\frac { 2 } { 3 } \\pi r ^ { 3 } = 2425 \\frac { 1 } { 2 }{/tex}{tex}\\Rightarrow \\frac { 2 } { 3 } \\times \\frac { 22 } { 7 } r ^ { 3 } = \\frac { 4851 } { 2 }{/tex}{tex}\\Rightarrow r ^ { 3 } = \\frac { 4851 \\times 3 \\times 7 } { 2 \\times 2 \\times 22 }{/tex}{tex}\\Rightarrow r ^ { 3 } = \\frac { 441 \\times 3 \\times 7 } { 2 \\times 2 \\times 2 }{/tex}{tex}\\Rightarrow r ^ { 3 } = \\frac { 21 ^ { 3 } } { 2 ^ { 3 } }{/tex}{tex}\\Rightarrow r = \\frac { 21 } { 2 } c m{/tex}So, the curved surface area of the hemisphere ={tex}2 \\pi r ^ { 2 }{/tex}{tex}= 2 \\times \\frac { 22 } { 7 } \\times \\frac { 21 } { 2 } \\times \\frac { 21 } { 2 } = 693 \\mathrm { cm } ^ { 2 }{/tex} | |
| 26449. |
Find the value of Ki the point (5\'4) Q is(3\'0)and (6\'0)find the third vertes |
| Answer» | |
| 26450. |
What is the marking scheme? |
| Answer» Check exam pattern here :\xa0https://mycbseguide.com/cbse-syllabus.html | |