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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.
| 24501. |
For what value of k,x=a is a solution of the equation x^2-(a+b)x+k=0. |
| Answer» K=ab | |
| 24502. |
666666+54327-765=??? |
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Answer» 720228 720228....??? |
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| 24503. |
1+sinA-cosA/1+sinA+cosA=√1-cosA/1+cosA |
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| 24504. |
What Is the means of surface |
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| 24505. |
how to learn trignometry formula |
| Answer» For first simple formulae u can remember by this poem "Some People Have, Curly Brown Hairs, Turned Partially Black." All the blocked letters r the first letter of the formula. S=P/H, C=B/H, T=P/B nd codec , sec, cot r just opposite | |
| 24506. |
I have problem in the sample paper if cbse class 10 sa1 set1 ques no. 3 |
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| 24507. |
The length of the diagonalsof a rhombus are 25cm and 10 cm.find each side of rhombus |
| Answer» 2.5 √ 29 | |
| 24508. |
Sg |
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| 24509. |
Mid point of the line segment joining the points P(6,b-2) & Q(-2,4)is (2,-3) find the value of b |
| Answer» b=-8 | |
| 24510. |
How to calculate assumed value i statistics |
| Answer» Firstly in table you make x(L1+L2/2) . Then assume any value as A . So make next colum name dx and dx=x-A and find the value at last dx muntiple by f and put value in formula | |
| 24511. |
Sn=? |
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Answer» Sn=n/2[2a(n-1)d] Sum of n terms |
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| 24512. |
6 x square minus x minus 2 is equal to zero |
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Answer» Sorry x=2/3& x=-1/2 X=2 |
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| 24513. |
How to solve a p chapter question easily |
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Answer» We need to know the perfect technics and need more practice By practice We know that practice make man perfect. |
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| 24514. |
1 is a prime no are not |
| Answer» 1is neither prime nor composite | |
| 24515. |
As a teacher. Mode me humko missing frequency find krne wale questions krne chahiye ya nahi..... |
| Answer» | |
| 24516. |
Trigonometry is very difficult and please tell I can overcome my fear |
| Answer» Learn the trigonometry ratio perfectly and then solve the in text question properly. | |
| 24517. |
Which book help to pass board exam 2018 |
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| 24518. |
If a and b are two odd positive integers such that a>b,then prove that one of the |
| Answer» If a and b are odd numbers then it should be in 2q+1 or 2q+3 form where\xa0q is a positive integer.Let a = 2q + 3 , b = 2q + 1 and\xa0a > bNow,\xa0{tex}\\frac{a + b } {2} = \\frac{ 2q + 3 + 2q + 1}{2}{/tex}{tex}= \\frac { 4 q + 4 } { 2 }{/tex}= 2q + 2{tex}\\frac{a+b}{2}{/tex}=2(q+1)\xa0= an even number..........(1)Now\xa0{tex}\\frac { a - b } { 2 } = \\frac { ( 2 q + 3 ) - ( 2 q + 1 ) } { 2 }{/tex}{tex}= \\frac { 2 q + 3 - 2 q - 1 } { 2 }{/tex}{tex}\\frac{a-b}{2}= \\frac { 2 } { 2 }{/tex}\xa0= 1 = an odd number..........(2)Hence From (1) and (2)\xa0{tex}\\frac{a+b}{2}{/tex} and\xa0{tex}\\frac{a-b}{2}{/tex} are even and odd numbers respectively | |
| 24519. |
A.PRelated |
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| 24520. |
75 m 90 \'and 60 \' find the lengh |
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| 24521. |
Is there any girl who can become my friend? |
| Answer» Concentrate in studies don\'t divert your mind | |
| 24522. |
If A+B=90°,TanA=3/4,what is CotB |
| Answer» | |
| 24523. |
(a+b) 3 |
| Answer» a3+b3+3ab(a+b)ORa3+b3+3a2b+3ab2 | |
| 24524. |
When will be are board exam |
| Answer» | |
| 24525. |
Tan upon 1 + cot = 1 + tan upon 2 + cosec square prove |
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| 24526. |
What is date of board examination |
| Answer» 10th March | |
| 24527. |
I feel the second term of an A P IS 1/9 and its ninth term is 1/7. Find its 63rd term. |
| Answer» | |
| 24528. |
Proof of distance formula |
| Answer» It\'s very simple just apply Pythagoras theorem. try on your own | |
| 24529. |
A solid metallic cone 20cm high with vertical angle 60is cut in to two parts y splane |
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| 24530. |
Two circles touch each other at a. BC and AD are common tangents. Prove that BD = CD |
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| 24531. |
What is Vulagar fraction ? |
| Answer» A vulgar fraction, common fraction or fraction is a fraction written in the usual way which is one number (integer) above another (integer) separated by a line. Examples of vulgar fraction are: 1/2, 5/11, 200/100. | |
| 24532. |
When will sample paper of all subjects available.??? |
| Answer» Check sample papers here :\xa0https://mycbseguide.com/cbse-sample-papers.html | |
| 24533. |
Find the sum of a.p. in which first 30 number divisible by 6 and remainder is 3 |
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| 24534. |
If one zero of 2xsqure —3x+k is reciprocal of other then find the value of k |
| Answer» Let be the two zeroes of the given polynomial.Then,\xa0{tex}\\alpha \\times \\frac{1}{\\alpha } = \\frac{{Constan t\\_term}}{{Coefficient({x^2})}}{/tex}{tex} \\Rightarrow 1 = \\frac{k}{2} {/tex}{tex}\\Rightarrow k = 2{/tex} | |
| 24535. |
Two coins are tossed simultaneously.find the probability of getting exactly one head |
| Answer» 2/4=1/2 | |
| 24536. |
What is a composite number |
| Answer» A number which has more than two factors is called a composite number | |
| 24537. |
Hi friends you will be my friend |
| Answer» What rubbish? | |
| 24538. |
Prove that the tangent drawn at the ends of a chord of a circle make equal angles with the chord |
| Answer» Let NM be chord of circle with centre C.Let tangents at M.N meet at the point O.Since OM is a tangent{tex}\\therefore OM \\bot CM{/tex}\xa0i.e.\xa0{tex}\\angle OMC = 90^\\circ {/tex}{tex}\\because ON{/tex}\xa0is a tangent{tex}\\therefore ON \\bot CN{/tex}\xa0i.e.\xa0{tex}\\angle ONC = 90^\\circ {/tex}Again in {tex}\\triangle CMN.CM = CN = r{/tex}{tex}\\therefore \\angle CMN = \\angle CNM{/tex}{tex}\\therefore \\angle OMC - \\angle CMN = \\angle ONC - \\angle CNM{/tex}{tex} \\Rightarrow \\angle OML = \\angle ONL{/tex}Thus, tangents make an equal angle with the chord. | |
| 24539. |
What division lemma |
| Answer» a=bq+r | |
| 24540. |
(CotA-cosecA)^2=1-cosA/1+cosA |
| Answer» LHS=(cosecA - cotA)2\xa0=\xa0{tex}\\left( \\frac { 1 } { \\sin A } - \\frac { \\cos A } { \\sin A } \\right) ^ { 2 }{/tex}{tex}= \\left( \\frac { 1 - \\cos A } { \\sin A } \\right) ^ { 2 }{/tex}{tex}= \\frac { ( 1 - \\cos A ) ^ { 2 } } { \\sin ^ { 2 } A }{/tex}{tex}= \\frac { ( 1 - \\cos A ) ^ { 2 } } { 1 - \\cos ^ { 2 } A }{/tex}{tex}= \\frac { ( 1 - \\cos A ) ^ { 2 } } { ( 1 - \\cos A ) ( 1 + \\cos A ) }{/tex}{tex}= \\frac { 1 - \\cos A } { 1 + \\cos A }{/tex}Hence proved | |
| 24541. |
Exercise 5.3 question number 8 |
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| 24542. |
Is -2 even no? Give reason |
| Answer» Yes, surely 2 is an even number.As 2 us also a multiple of 2 and all the multiples of 2 are even. | |
| 24543. |
if two vertices of an equilateral trangle be (0,0),(3,root 3)find 3rd vertics |
| Answer» OA = OB = AB{tex} \\Rightarrow {/tex}\xa0OA2 = OB2 = AB2\xa0\xa0OA2 =OB2{tex} \\Rightarrow {/tex}\xa0x2 + y2 = 12 .... (i)OB2 = AB2{tex} \\Rightarrow 3x + \\sqrt 3 y = 6{/tex}\xa0..... (ii){tex} \\Rightarrow y = \\frac{{6 - 3x}}{{\\sqrt 3 }}{/tex}Put the value of y in eq. (i),{tex}{x^2} + {\\left( {\\frac{{6 - 3x}}{{\\sqrt 3 }}} \\right)^2} = 12{/tex}{tex} \\Rightarrow {/tex}\xa0x = 0 or x = 3When x = 0,\xa0{tex}y = 2\\sqrt 3 {/tex}{tex}\\left( {0,2\\sqrt 3 } \\right){/tex}When x = 3y,\xa0{tex}y = - \\sqrt 3 {/tex}{tex}\\left( {3, - \\sqrt 3 } \\right){/tex} | |
| 24544. |
Ta 48°tan23°tan42°tan67°=1 |
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| 24545. |
What is appolonius theorem |
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| 24546. |
Plse give me sample paper |
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| 24547. |
Formula of volume of cone is ......... |
| Answer» 1 over 3 pie r squre h | |
| 24548. |
How score high marks |
| Answer» By doing hard study | |
| 24549. |
why the science is necessary |
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| 24550. |
100/100=2 |
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