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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.
| 1801. |
Find the sum of the sequence 5, 55, 555... to n terms . |
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Answer» 5(1,11,111+...+ n)5/9(9+99+999+...+n)5/9(10-1+100-1+1000-1+...+n)5/9(10+100+1000+...+(-1)^n)because 10 +100+1000 are in GP so,we are using the formula of sum of GP.5/9{10(10^n-1/9)+(-1)^n} 5/81(10×(10^n-1)-9n) |
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| 1802. |
How many no.s can be formed greater than 56000 with 4,5,6,7,8 with no repetition |
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Answer» No. greater than 56000 will be . We have to fix 56 then there are three no. Left so 1×1×1×2×3=6.So,there are 6 ways Answer |
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| 1803. |
If x2-3x-4 |
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Answer» 1&2qudrant (-1,4) |
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| 1804. |
ax+b÷px×x+gx+r |
| Answer» | |
| 1805. |
2+3-4+5-6+7/8 |
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Answer» 0.875 0.875 0.875 0.8 |
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| 1806. |
[x]-x find it domain and range |
| Answer» Bohat hard | |
| 1807. |
Simplify i^18+i^-17+2 |
| Answer» -1+1/i+21-i | |
| 1808. |
Where is solution of mid term question paper ?? |
| Answer» | |
| 1809. |
Chapter 5 q2 |
| Answer» Hey | |
| 1810. |
Domain and range of function 1/root x-5 |
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Answer» Domain [5,1/0)Range[0,5] Chapter 5 |
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| 1811. |
Modulus of -1+i. |
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Answer» Modulus is root of real part +cofficent of imaginary part .Here real part is -1and cofficent of imaginary part is 1.So modulus is root 2 √2 Root 2 |
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| 1812. |
Find domain and range,f(x) = - |x| |
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Answer» All real number f(x) = - (x) one time positve x f(x) = - x or f(x) = -(-x) one time negative xf(x) = + x |
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| 1813. |
Prove that 2÷10=2 |
| Answer» LHS Two/Ten =wo/enAcc. To alphabetical order23+15/5+14=38/19 = 2 Hence2/10=2 | |
| 1814. |
How to find the value of sin40 degree |
| Answer» Use of brain | |
| 1815. |
In how many ways can the letters of word ASSASSINATION be arranged so that all the S\'s are together |
| Answer» 10×9!/2!2!3!=10×9*8*7*6*5*4*3!/2*1*2*1*3!=151200 | |
| 1816. |
IF nC8=nC2 find nC2 |
| Answer» nCr=nCn-rnC8=nCn-28=n-2n=10nCr=n!/(n-r)! r! 10C2=10!/(10-2)!2!=10*9*8!/8!*2*1=10*9/2=45 | |
| 1817. |
A = {x,y,z} and B ={1,2} find the no. Of relation from A to B |
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Answer» 6 Nice Art @▀▄▀▄▀▄ Ђάmmάⓓ Kђάη ▄▀▄▀▄▀ . 6. |
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| 1818. |
Convert 10 radian to degree measure |
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Answer» 572.7 572.958 degreeU can convert it also in minute and second. |
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| 1819. |
n!/(n-r)!r!+n!/(n-r+1)!(r-1)!=?? |
| Answer» Ans:(n+1)! / r! ( n-r+1)!\xa0\xa0To proven! / r!(n-r)! + n! / (r-1)! (n-r+1)! = (n+1)! / r!(n-r+1)!L.H.Sn! / (r)(r-1)! (n-r)! +n! / (r-1)! (n-r+1)(n-r)!n! / (r-1)! (n-r)! will be commonso,n! / (r-1)! (n-r)! *[ 1/r + 1/(n-r+1) ]n! / (r-1)! (n-r)! *[ n-r+1+r / nr-r2\xa0+r ]we will get ,n! / (r-1)! (n-r)! / * [n+1 / r(n-r+1)](n!) (n+1) / (r-1)! (r) (n-r)! (n-r+1)(n+1)! / r! ( n-r+1)! | |
| 1820. |
(√3-1)cosx +(√3+1)sinx=2 |
| Answer» | |
| 1821. |
Mo-m=2 and mo+m=60 |
| Answer» Not answerable | |
| 1822. |
Show that cos²x +cos ²(x+60) + cos ²(x-60) =3/2 |
| Answer» | |
| 1823. |
Write first five terms of each of the sequence a1= An=3An_1 +2 for all n less then 1 |
| Answer» | |
| 1824. |
By which number (-1/6) power -4 must be divided to get 6?? |
| Answer» | |
| 1825. |
√4+3√-20 |
| Answer» | |
| 1826. |
√4+3√-2. |
| Answer» | |
| 1827. |
The perimeter of a triangle ABC is 27cm and its area is 81cm.its radian is |
| Answer» | |
| 1828. |
If (1+x)^n=a0+a1x+a2x^2+------+anx^n prove that 2^n=(a0-a2+a4-------)+(a1-a3+a5------) |
| Answer» | |
| 1829. |
Is {a} belongs to {a,b,c} ? |
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Answer» It doesn\'t belong to (a,b,c) it is its subset Yes |
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| 1830. |
Defin function,domain, |
| Answer» Function has only one value of one input ..and domain is said to be that if the element has first no.. | |
| 1831. |
Chapter 3 ques no 22 |
| Answer» | |
| 1832. |
|√3sinx -cosx|>1 |
| Answer» [0,1] | |
| 1833. |
Chapter 2 example 5 |
| Answer» | |
| 1834. |
What is the value of tanpy by 8 |
| Answer» | |
| 1835. |
Explain and illustrate the concept of argument,modulus and polar form of a complex number |
| Answer» | |
| 1836. |
how many 4 letter word can be form using the letter of the word INEFFECTIVE |
| Answer» 1422 | |
| 1837. |
Sin(x+y)×sin(x-y) |
| Answer» sin^2 x - sin^2 y | |
| 1838. |
1^3+2^3+3^+___+n^3={n(n+1)/2}^2 |
| Answer» step 1 : put n=1 p(1) = 1=1 step 2 : let the result true for n = kp(k) : 1^3 + 2^3 +_________+k^3 = {k(k+1)/2}^2 __(1)step3 : show the result is true for n=k+1 p(k+1) = 1^3+2^3+______+(k+2) | |
| 1839. |
question 10 of first chapter |
| Answer» | |
| 1840. |
Find general term of the A.P 7,2,-3,-8 |
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Answer» Sorry 12—5n 12—2n |
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| 1841. |
Prove by pmi that( n^7) - n is divisible by 7 |
| Answer» _Ever wondered that sum of positive numbers could be a negative number?__But Ramanujan - \'The man who knew Infinity\' proposed that__1+2+3+4+5..... = -1/12__To watch how is it possible, kindly watch video on my you tube channel from link given below:-_https://youtu.be/Eu9lM3S41wg_If possible kindly like, comment, share & subscribe my channel._*REGARDS**MANEET SINGH* | |
| 1842. |
If p(n-1,3):p(n+1,3)=5:12 find n |
| Answer» | |
| 1843. |
Number of subset of the set A={1,4,5} |
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Answer» 2^3= 2×2×2= 8 8 Anwesha Das I\'ve uploaded videos on trignometric functions and permutation and combination. If you\'re interested then kindly msg me 2^3 = 8 9 |
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| 1844. |
What is the value of pie in trigonometry |
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Answer» 180 degree 180° 2 pie = 360 degree 180 degree |
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| 1845. |
Range of 1/√x-1 |
| Answer» (0,infinity) | |
| 1846. |
A={5,6,7,8}B={1,3,5,7,9}findAuB |
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Answer» Here the answer is AuB is ={1,3,5,6,7,8,9} .Only once time a number can be choosen in A union B....? Hy pranav the ansher ={5,6,7,8,1,3,9} Hey pranav The answer is AUB={1,3,5,6,7,8,9} |
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| 1847. |
How can I get 75/75 on maths |
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Answer» You saying a lie I think you are super intelligent boy so leave the question By hard working daily By practising daily |
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| 1848. |
Find the value of tan1.tan2.tan3-------- tan89 |
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Answer» 1 Because tan1=cot89 and it will cancelled with tan 89 Like this all function will cancel each other Then the answer is 1 0 |
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| 1849. |
Dimensional firmula of speed |
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Answer» LT-1 LT^-1 |
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| 1850. |
Find the value of tanA.tan2A.tan3A |
| Answer» Tan3A-Tan2A-TanA | |