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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.
| 20501. |
phythagoras theorem kesa proof hota ha |
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Answer» Same on you .Book nahi hai kya? Book mein dekh le |
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| 20502. |
3 sample papers will be enough |
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Answer» No at least 10 so how many No |
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| 20503. |
Plz give table of sin cos tan |
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Answer» tan0 = 0 & tan90 = un defined Tan0 = un defined , tan30 = 1/√3 , tan45 = 1 , tan60 = √3 , tan90 = 0 Cos0 = 1 , cos30 = (√3)/2 , cos45 = 1/√2 , cos60 = 1/2 , cos90 = 0 Sin0 = 0 , sin30 = 1/2 , sin45 = 1/√2 , sin60 = (√3)/2 , sin90 = 1 |
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| 20504. |
in an equilateral triangle ABC.D is a point on side BC such that BD=1/3BC.prove that 9AD2=7AB2 |
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Answer» Given :- An equilateral triangle ABC and D be a point on BC such that BD= 1/3 BC.To prove :- 9AD^2 = 7AB^2Construction :- Draw AE Perpendicular to BC and Join AD.Proof :- Triangle ABC is an equilateral triangle and AE Perpendicular to BCTherefore BE = ECThus, we haveBD = 1/3 BC and DC = 2/3 BC and BE = EC = 1/3BCIn Triangle AEB AE^2 + BE^2 = AB^2 [Using Pythagoras Theorem]AE^2 = AB^2 - BE^2AD^2 - DE^2 = AB^2 - BE^2 [\'.\' In Triangle AED, AD^2 = AE^2 + DE^2]AD^2 = AB^2 - BE^2 + DE^2 AD^2 = AB^2 - (1/2 BC)^2 + ( BE - BD )^2AD^2 = AN^2 - 1/4 BC ^2 + (1/2 BC - 1/3 BC )^2AD^2 = AB^2 - 1/4 BC^2 + ( BC/6 )^2 AD^2 = AB^2 - BC^2 (1/4 - 1/36 )AD^2 = AB^2 - BC^2 (8/36)9AD^2 = 9AB^2 - 2BC^29AD^2 = 9AB^2 - 2AB^2 [ \'.\' AB = BC ]9AD^2 = 7 AB^2 i know the shortest trick. i was just knowing how many here know the short ans?????? This is too long No in RD it is too long.don\'t you have any short sol. Given in Rd Sharma Hi siya |
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| 20505. |
Kitne chapters Ho gye hai sabke? |
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Answer» I am mathematics topper from class 10 do you have any doubt I know all but I have revised 7 yet All? ??? 5 chap All Kon hai |
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| 20506. |
exercise 12.1 Q no. 3 anyone please i need only hint |
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Answer» thanks a lot Area of 1st region gold = πr^2 = 22/7 × 10.5 × 10.5 & Area of 2nd region red = π(R^2 - r^2) = 22/7 ×(21^2 - 10.5^2) & Area of 3rd region blue = π(R^2 - r^2) = 22/7 ×(31.5^2 - 21^2) Radius of gold =10.5 Area of gold = 22/7 × (10.5)^2Radius of red =10.5+10.5Area of red =22/7×(21)^2 - area of gold Similarly add 10.5 in radius for next and for its area 22/7×(21+10.5)^2 - 22/7×(21)^2 |
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| 20507. |
Construct a triangle whose sides are 3 and 8 |
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Answer» Sorry for reply ???? Leave that???? |
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| 20508. |
Yaar circles lesson samja do ??? |
| Answer» 29 ko milna Ab smjh ke ky kareg ? | |
| 20509. |
3×5×7×8×6×+8+6+8_4×9 is a composite number explain |
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Answer» When u will solve this u will understand that the no. Has more than 2 factors so it is composite Kon |
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| 20510. |
(Polinomials) imp questionssss |
| Answer» | |
| 20511. |
Plz give full table of sin cos tan cot sec cosec |
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Answer» No need to know.Your teacher will teach you later. See in NCERT or I have written below of sin cos tan, change there numerator with there denominator you will get value of cosec sec cot Yet i have not recieved my books because i have new entered in 10th See ncert book |
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| 20512. |
Can Y can be the remainder on divisin of a polynomial f(y)by (y-2) |
| Answer» Kal Mila phir btayenge | |
| 20513. |
If tan square alpha=1+ tan square betaProove that 2 sin square alpha= 1+ sin square beta |
| Answer» Are you sure to prove is that, I tried this que but I proved 2sin2alpha = 1 + sin2alpha.sin2beta | |
| 20514. |
P is any point inside a rectangle ABCD. Prove that PB.PB+PD.PD=PA.PA +PC.PC |
| Answer» Given in ncert book | |
| 20515. |
Find the value of a so that the point (3,a) lies on the line represented by 2x-3y=5 |
| Answer» a = 1/3 | |
| 20516. |
When we use mode of coordinate geometry chapter ? .....plzz reply me fast |
| Answer» When answer is a negative number | |
| 20517. |
If m (th) term of an AP is 1/n and n (th) term of an AP is1/m then show that (m×n)=1 |
| Answer» Let a and d be the first term and common difference respectively of the given A.P. Thenan = a + (n - 1)d{tex}\\frac { 1 } { n } ={/tex}\xa0mth term\xa0{tex}\\Rightarrow \\frac { 1 } { n } {/tex}= a + ( m - 1 ) d\xa0...(i){tex}\\frac { 1 } { m }{/tex}= nth term{tex}\\Rightarrow \\frac { 1 } { m } {/tex}= a + ( n - 1 ) d\xa0...(ii)On subtracting equation (ii) from equation (i), we get{tex}\\frac { 1 } { n } - \\frac { 1 } { m } = {/tex} [a+ (m-1) d] -[ a+ (n -1)d]= a + md - d - a - nd + d{tex}= ( m - n ) d{/tex}{tex} \\Rightarrow \\frac { m - n } { m n } = ( m - n ) d {/tex}{tex}\\Rightarrow d = \\frac { 1 } { m n }{/tex}Putting d = {tex}\\frac { 1 } { m n }{/tex}\xa0in equation (i), we get{tex}\\frac { 1 } { n } = a + \\frac { ( m - 1 ) } { m n } {/tex}{tex}\\Rightarrow \\frac { 1 } { n } = a + \\frac { 1 } { n } - \\frac { 1 } { m n } {/tex}{tex}\\Rightarrow a = \\frac { 1 } { m n }{/tex}{tex}\\therefore{/tex}\xa0(mn)th term = a + (mn - 1) d=\xa0{tex}\\frac { 1 } { m n } + ( m n - 1 ) \\frac { 1 } { m n } {/tex}{tex}\\left[ \\because a = \\frac { 1 } { m n } = d \\right]{/tex}= {tex}\\frac { 1 } { m n } + \\frac { mn } { m n } - \\frac { 1 } { m n }{/tex}= 1 | |
| 20518. |
Show that the points A(1,0) B(5,3) C(2,7) are the vertices of the parellalogram |
| Answer» What is the forth point | |
| 20519. |
What is the smallest composite number? |
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Answer» 4 4 is the smallest composite number |
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| 20520. |
How to prepare trigo easily? |
| Answer» Practice all sums there in ncert of trigo ( at least solved examples there are very few examples ) . All the best ! | |
| 20521. |
Formula of a3-b3 |
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Answer» (a-b) (a² + b² + ab ) A3+b3-3ab(a+b) (a-b)(a2+b2+ab) A3 -b3-3a2b+3ab2 |
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| 20522. |
Why we use "MODE" in chapter 7 coordinate geometry ?........plz...reply me fast................! |
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Answer» So that area don\'t come negative Where we have used mode in chap 7??? |
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| 20523. |
Ap sav ka preparation kaisa chal rha h??? |
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Answer» Ya kuch ho gaya aur kuch baki h☺️☺️ Tumhara hua |
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| 20524. |
Hey guys mats ki |
| Answer» Aaj hi se suru kiya h | |
| 20525. |
Middle term splitting of 1) 4usquare+8u |
| Answer» 4u(u+2) = u=0 or -2 | |
| 20526. |
How to find mode easily |
| Answer» | |
| 20527. |
How many chapters have u finished |
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Answer» Is Harmanpreet you are from ambala 8 |
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| 20528. |
How to construct 105 degre? |
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Answer» Bisector of 90 and 120 dgree is it in our syllabus? 90 degree +15 degree |
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| 20529. |
prove: sin/1-cos + tan/1+cos= sec*cosec+ cot |
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Answer» Ic 1 -cos aur 1+ cos ka LCM le lo shayad nikal jaye |
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| 20530. |
Statics kis kis ki ho gayi |
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Answer» I have done Meri nhi hui |
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| 20531. |
Find the probability of getting a spade or an Ace? |
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Answer» 17/52.ib this question or means to add both probability to get correct answer 17/52 We do not have to find separately For ace =4/52 for spade=13/52 16/52 Reply fast |
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| 20532. |
Important theorem in chapter 6 triangle??? |
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Answer» Area theorem ,converse of bpt is also important. Okk... Thanks dear!!! But Pythagorean and Thales theorem All the theorems are impt |
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| 20533. |
What is mean method |
| Answer» If not in group data it is just the average . | |
| 20534. |
Maths ki tayari ho gyi frienfs |
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Answer» Thora baki h Yupp Thodi rahti hai |
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| 20535. |
Triangle chapter of ncert is enough for the exam or not |
| Answer» Its enough | |
| 20536. |
Find how many integers between 200and 500 are divisible by 8. |
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Answer» 36 18 |
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| 20537. |
Who have problem in finding value of sin(120) |
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Answer» Sin120= sin(90+30)= sin90× cos30 + sin 30×cos90 .....put the values Me |
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| 20538. |
Can we use segment formula |
| Answer» Where | |
| 20539. |
How is uR preparations for mathematics exam???? |
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Answer» Thuk chal rhi hai very good Work on progress Thodi ho rahi hai |
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| 20540. |
If sinA +cosA=2 Find tanA +cotA |
| Answer» -2 | |
| 20541. |
Is secant tangent theorem in our course? |
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Answer» No but some sum are based on that No |
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| 20542. |
Probe that sinA- cosA+1/sinA+cosA-1= 1/secA-tanA |
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| 20543. |
Number distribution |
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| 20544. |
Guys is it fine if I\'m only acquainted with the NCERT and last years question papers |
| Answer» 90% | |
| 20545. |
Is it allowed to follow direct method while finding mean in statistics |
| Answer» Yes but if method name is given then according to that | |
| 20546. |
What is the difference between atleast and atmost in probability chapter ? ? |
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Answer» No Atleast means ex. Atleast 3 means means possibility is maximum 3 and below 3 possibility is minimum.I hope it help you. |
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| 20547. |
sec a+ tan a=2 |
| Answer» | |
| 20548. |
Every month Arnia |
| Answer» | |
| 20549. |
What is Euclid\'s division Lemma |
| Answer» A=bq+r | |
| 20550. |
If D= -4(A+B)square.....what will be the nature of roots?.....1 marks |
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Answer» Complex roots Distinct roots |
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