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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.
| 4651. |
Ch 1 questin2 of ex.1.1 |
| Answer» Hi | |
| 4652. |
The sum of first n terms of an AP is 2n2 +3n. Find 16th term of the AP. |
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Answer» Answer. 140 S1=2.1+3.1=5S2=2.4+3.2=14a=5 d=14-5=9n=16A16=5+15.9 =140 Can you please show me format to solve it plzzzzzzzz divya Yes n will be 16??? Thx An=s(n) -s(n-1) se aa jayega What will be a and d to be used if I use that formula? Bt if I m using than also its coming a+15d=-1 How u got divya? Yup it is formula to solve this You mean Sn-Sn-1 = Tn ??? Ans h kya 65 Apology I m sis I mean girl Bro Sn-Sn-1kar le Tn a jayga |
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| 4653. |
Prove that SEC∅+1-TAN∅ / SEC∅+1+TAN∅ = 1-SIN∅ / COS∅ |
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Answer» I am taking theta as A=SecA-tanA+(sec^2A-tan^2A)/secA+1+tanA {replacing 1using identity sec2A-tan2A=1}=secA-tanA(secA+tanA+1)/secA+1+tanA=secA-tanA=1/cosA - sinA/cosA=1-sinA/cosA Missing you a lot???????????????? ???????????????? Raj ???????? Profile name mein Suman kon h jii Hiiiiiiiiiiiiiii jii |
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| 4654. |
Two cubes each of volume 64 cm cube are joined end2end find the surface area of the resulting cuboid |
| Answer» 160cm cube | |
| 4655. |
Maths Ncert optional exercise will come in board exam or not |
| Answer» Mosts of que is important in optional exe so you just solve that exe its is the best option | |
| 4656. |
Can (x-2)be the remainder on division of a polnomial p (x) by (x+2) |
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| 4657. |
What is the probability that a leap year, selected at random will contain 53 Sundays? |
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Answer» 1/7 Ok Yaad aa gai meri?? Guys plzz answer my question. Me yhi hu Aree divya kaha gai Hahaha?? Ha ha ??? Chill guys it\'s winter.... ☺1☺1☺ Aap sb ke sath baat kar kar ke meri hindi achi ho gayi.... Are to bhadak kyu rhe ho I am just joking ??????relax..... Hmmmm Bhai ya sirf apni guilt ko show karta ha agra thugha koi problem ha to i cant do anything Galti se mistake ho gayi right devil? ?? Glti se mistake ??? It\'s OK bhai maaf kiya apko?????? Sorry kya hota hai galti kro or sorry ???? ????? Sorry dhyan nahi diya Kuch bolo devil Yaa ? ?? ?? Devil it\'s Sunday * not sanday If 52 sandays rhan 2/7 probablity 52 Sandy\'s hota hai kya 2/7 1 |
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| 4658. |
explain me trignomentry chapter |
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Answer» ????????????????????????????? ??? Itna padhkar hi chakar a gaye ??? ????? Aa kya ha ya Trigonometry (from Greek trigōnon, "triangle" and metron, "measure"[1]) is a branch of mathematics that studies relationships involving lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.[2]The 3rd-century astronomers first noted that the lengths of the sides of a right-angle triangle and the angles between those sides have fixed relationships: that is, if at least the length of one side and the value of one angle is known, then all other angles and lengths can be determined algorithmically. These calculations soon came to be defined as the trigonometric functions and today are pervasive in both pure and applied mathematics: fundamental methods of analysis such as the Fourier transform, for example, or the wave equation, use trigonometric functions to understand cyclical phenomena across many applications in fields as diverse as physics, mechanical and electrical engineering, music and acoustics, astronomy, ecology, and biology. Trigonometry is also the foundation of surveying.Trigonometry is most simply associated with planar right-angle triangles (each of which is a two-dimensional triangle with one angle equal to 90 degrees). The applicability to non-right-angle triangles exists, but, since any non-right-angle triangle (on a flat plane) can be bisected to create two right-angle triangles, most problems can be reduced to calculations on right-angle triangles. Thus to It\'s in ncert text book ?Not possible here to explain. ......... ???? Howw |
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| 4659. |
Find the coordenates of the point on y axis which is nearst to the point (-2,5) |
| Answer» (0,5) | |
| 4660. |
What is the probability that in a leap year , selected at random will contain 53 Thursdays |
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Answer» 2/7 2/7 |
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| 4661. |
If hcf of 144and 180 is expressed in the form 13m-3,find the value of m |
| Answer» m=3 | |
| 4662. |
Say all the formula |
| Answer» In AP formulaan=a+(n-1)dsn=n/2(2a+n-1)dln=l-(n-1)d | |
| 4663. |
0000 |
| Answer» What is this?? | |
| 4664. |
Ch_14 ex14.4 |
| Answer» | |
| 4665. |
What is irrational numbers |
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Answer» An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal. the number which expressed decimal form ?????awww ni ata |
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| 4666. |
Find the sum of the zeros of the quadratic polynomial 3x2 +5x-2 |
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| 4667. |
What is the probability of choosing a team of a boy and a girl from a group of 5 boys & 4 girls ? |
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Answer» ??? Anytime available Yes...Got it ....Thanks Got it anne 2/9 aa rha hai mera toh No. of favourable outcome / total no. of events Yes....Got it..... How to solve it? Because it is given in combination so number of total events will be multiple d Yes answer is right In answer it is given 1/20. ....I want to know how to solve it 1/9 Wait... Any answer friends ? |
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| 4668. |
Find the value of 7÷cot×cot-7÷cos×cos |
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| 4669. |
Probability of getting 53 Fridays in a leap year? |
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Answer» I think it may be 53/366This question is came in pre board exam of class10. Hope it helps. 2/7 7/2 2/7 |
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| 4670. |
a2b2x2+b2x-a2x-1=0 |
| Answer» x=1/b^2 and x=-1/a^2 | |
| 4671. |
Data handling |
| Answer» | |
| 4672. |
a natural number when increased by 12 equals 160 times it\'s reciprocal find the number |
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Answer» Manya tell How??? Probably answer will be 8 and -20. |
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| 4673. |
Find the rational number which the y axis divides the segment joining (-3,6) and (12,-3) . |
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Answer» The point will be (0,Y) and according to the formula the answer is (0,21/5) by taking the ratio K :1 The point will be(0,y)Let the ratio be = k:1And use section formulaThat is (for this question )Y = my2+ny1/m+n0 = k×(-3)+1(6)/k+10 = -3k+6K = 2Ratio is 2:1 (0,21/5)X coordinate =0Y coordinate =21/5 |
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| 4674. |
The fourth vertex D of a parallelogram ABCD whose three vertices are A(2,3), B(6,7), C(8,3) |
| Answer» First find the coordinate of centre of diagonal with the help of coordinate of A and C and with the help of coordinate of centre and coordinate of B just find the coordinate of D by using the formula x1+x2/2 and y1+y2/2 | |
| 4675. |
How to concentrate on studies |
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Answer» Don\'t be stressed. Only concentrate on studies. I too suggest you this leave yur smartphone |
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| 4676. |
How to score above95% |
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Answer» Don\'t be afraid to study Do hard work??? |
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| 4677. |
What is the sum of 1+2+3+4+.........+infinity????? |
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Answer» Khud Jor kar Dekh lo n/2 (2×1+(n-1)1) answer is infinity 548737953578896433689965335543688655.. agar wiswas nahi hai to khud not kar Dekh lo.. |
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| 4678. |
How to become all India topper tips and guidance |
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Answer» Hasan nahi gazab Sorry ham Hasan likh rahe the Hasan ho yar Agar hmlog ko pata rahta to hmlog baithe rahte. |
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| 4679. |
What is smallest odd number? |
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Answer» 1 3 |
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| 4680. |
What is the 27th positive odd number? |
| Answer» | |
| 4681. |
Find the point on x axis which is equidistant from the points (-2,5)and(-2,9) |
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| 4682. |
How many terms of the given AP 9 , 17 ,25 ........must be taken to give sum of 636 |
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Answer» 4nsquare - 48n +53n - 6364n(n-12)+53(n-12)=n=12 12terms 4nsquare + 5n- 636=0 Divya can u plz say the quadratic equation formed here N= 12 |
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| 4683. |
4th term + 8th term =24 , 6th term + 10th tem = 44Find a and d |
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Answer» Question boliye Pucho rani Thank you adam Ok Thank you divya Ek aur ques h bs answer btana solve to kar liye h Welcome Mera v Thanks adam How?? Mera bhi yahi nikla confirm ho rhe the bs thanks divya d=5a=-13 D=5 and a=-13 I also want the answer of this question.Can anyone help Hiii Bolo rani Ha Sum h kya Answer batao Hlo Hello Hi |
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| 4684. |
X2=45 |
| Answer» | |
| 4685. |
Find the 101st term of A.P.5,11,17... |
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Answer» 605 611-6n Sorry 605 17 |
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| 4686. |
If cosα/cosβ=m, cosα/sinβ=n show that (m2+n2) cos2β=n2 |
| Answer» It is so easy just put the value of M and N in L.H.S. | |
| 4687. |
Find the value of P for which the following equations has two equal roots(P-12) |
| Answer» It will have only 1 root, since the degree of the polynomial is 1 | |
| 4688. |
All circles are _ |
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Answer» Similar Round. OOOOO similar ~ |
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| 4689. |
How can we find cumulative frequency (cf)? |
| Answer» Keep on adding the frequencies one after the other... | |
| 4690. |
How we understand chapter 6 of ncert triangle |
| Answer» First....... Practice all theorems of this ch... | |
| 4691. |
2+2+4/8=5 |
| Answer» IT is correct | |
| 4692. |
Is it true that 80•/• maths CBSE paper is based on ncert |
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Answer» Hots q. are of how much marks ? Science also Yes |
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| 4693. |
Video on problem of age questions |
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Answer» YouTube check kr Pls answer mey question |
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| 4694. |
How to make 175° angle with compass |
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Answer» Bisect 180-120°.......then u get 150° (120+30)......then furthur bisect 180-150°.....u get 175 (150+15°) 75 cant be drawn by a compass because it is not a divisible of 15. It can only be drawn by a protactor. |
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| 4695. |
In an AP, the sum of first ten term is -150 and the sum of next ten term is -550 |
| Answer» | |
| 4696. |
Root |
| Answer» What root?? | |
| 4697. |
If alfa and bita are the zeros of pokynonial x2-5x+k such that alfa - bita = 1 then find k |
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Answer» How dear K = 6 |
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| 4698. |
SinA+SinB+SinC=30° |
| Answer» ???? | |
| 4699. |
One more pls ha solve the quadratic equation 2x²+ax-a²=0 for x???? |
| Answer» Using quadratic formula U can solve it easilyAnswer will be a/2 and a | |
| 4700. |
1+cos-sin²/sin(1+cos) =cot |
| Answer» 1+cos-(1-cos2)/sin(1+cos)=(1+cos)-(1-cos)(1+cos)/sin(1+cos)=1+cos(1-1+cos)/sin(1+cos)=cos/sin=cot | |