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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Class 11 knowledge and support exam preparation. Choose a topic below to get started.
551. |
If (a+ib) = (x+i/2x+1) prove that a2+b2 = (x+1)/(2x+1) |
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552. |
Why life is a hell ? |
Answer» Yugo Yugo Tak tapasya karne ke baad bhi koi time ko destroy nahi kar sakte .Kewal bhagwan kar sakten hai kyounki ounhone time ko bhi banaya h.<br>Humans are suffering more beacuse they have welcomed that suffering, they are not Fighting against it.<br>False, humans suffer most!<br>Life is not a hell if you see clearly it a a very beautiful gift of God.On the other hand if we se other species, animals , birds ,trees etc . They are more unhappy , scared, or malaise then us but they didn\'t complain for their life just not because they are unable to speak but they know it\'s value more than human beings. In really, after so many problems they are living and can be called as lived .But mostly all lived humans beings are dead because of their poor and bad works or thinking. | |
553. |
If A = {1,2,3,4,5}, then write the number of proper subsets of A??... |
Answer» Mention not !...?<br>Yes I got it thanks and sorry also for challenge<br>No legendary you\'re wrong.... the correct formula for finding proper subset is 2ⁿ-1 as Yogita mam has written.... And the formula 2ⁿ you\'re saying is for finding no. of subsets.... I hope u understand and if u still have any doubt u can ask me....<br>Wrong formula for number of ekements I challenge you mam its 2^n only<br>The number of proper subsets of any set is given by the formula 2n -1\xa0where n is the number of elements in the set.Here n = 525 -1 = 32 - 1 = 31 | |
554. |
Lim x--->0 (e^2x-e^x)/sin2x |
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555. |
If 2a+4b+9c=10 so find the greatest value of a²b⁴c³ |
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556. |
What is permutation? |
Answer» A permutation is defined as an arrangement in a definite order of a number of objects taken some or all at a time. Counting permutations are merely counting the number of ways in which some or all objects at a time are rearranged. The convenient expression to denote permutation is defined as “\xa0nPr\xa0”.The permutation formula is given by,\tPr\xa0= n!/(n-r)! ; 0\xa0≤ r ≤ n\t | |
557. |
Find the domain of the range following function 1. Sin-1 (X) |
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558. |
If the lines 2x + y-3=0,5x+Ky-3=0 and 3x-y-2=0 are concurrent , find the value of K |
Answer» We know that, Three lines are said to be concurrent, if they pass through a common point which also means that the point of intersection of any two lines always lies on the third line.Now, the three given equations of line are:2x + y − 3 = 0 ... (1)5x + ky − 3 = 0 ... (2)and 3x − y − 2 = 0 ... (3)Firstly, we will solve the equations (1) and (3) and find out the value of x and y. The corresponding value of x and y will also satisfy the equation (2) as all the given lines are concurrent.Therefore, on adding (1) and (3), we get2x + y − 3 + 3x − y − 2 = 0⇒ 5x - 5 = 0⇒ x = 1On putting value of x in (1), we get2(1) + y − 3 =0⇒ y - 1 = 0⇒ y = 1So, the point of intersection of two lines is (1, 1).Now, this point will also satisfy the equation (2).Therefore, on putting (x, y) = (1, 1) in (2), we get5(1) + k(1) − 3 = 0⇒ k + 2 = 0⇒ k = - 2\xa0 | |
559. |
If A={x:xEz,x is solution of x4-16=0}then A= ____ . |
Answer» x⁴-16=(x²+4)(x²-4) , so the value of x is (x²-4)= x²=4 , x=√4 so the value of x is -2,-1,0,1,2. | |
560. |
Hi guys is here anyone from kv |
Answer» Ya<br>kendriya vidyalaya school<br>Kv....mtlb ?? | |
561. |
Tan theta +2 cos theta is equal to |
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562. |
9-1 |
Answer» 8 | |
563. |
100 number krle dial maza ayega tujhe |
Answer» Number mne de diya ab number dial krne se o drte hai wo bolrw wah wah nach na jane angan teda<br>Ye bass ye hi bol layak ha Fattgi iss ki....<br>Abusing bnd krlw fir kehra hu all agrees with me I never abuse you and even anyone aur tum aesi faltu ki baate krte ho aay bade<br>abhe no. dene ko bhi darta kya tu #Legendary......so pity<br>Fattgi Teri....... | |
564. |
Sinx ka anti derivatives |
Answer» -cosx<br>-cosx<br>-cosx<br>-cosx<br>-xosx | |
565. |
What is integration in mathematics? |
Answer» Ok Par bhot help kih aapne merih.<br>Nhi<br>Jab bol duga tab bolna ye thanks Abhi bhi yrr<br>Thanks a lot Sahil.<br>Bol duga uss ko | |
566. |
How to time travel in past ? More accurately , make this time past ans we become kids . |
Answer» In imagination. And most probably do the same things that you have done in past.<br>And* | |
567. |
Gatgsgy |
Answer» Hsdvicijgffvvbt??? | |
568. |
Give deliy life 4example of subset |
Answer» Welcome<br>Thanks ??<br>These can be sunsets of food stuff , vehicles, books, toys etc.and the things we are using in daily bases.Eg. Subsets of vehicles : cars, trucks, train, bus, motorcycles etc. | |
569. |
Sec square x + cosec square x is equal to or greater than four .......solve it ....... |
Answer» ???<br>Don\'t know yrr | |
570. |
Happy Dusshera to all kripya sb apne andar k ravan ko maare na ki mare hue ko baar baar karte rahe? |
Answer» Sahi baat ha bhai.......<br>Same to you friend<br>Or ye usse bhi aacha hoga ki ham apne ander ke Ravan ko jagne hi na de.<br>Ha , ?? | |
571. |
Sec ^2x + cosec^2x _>4 solve this question |
Answer» Aata nhi???<br>Kya ha ye....... | |
572. |
If U = {1, 2, 3, 4} and R = {(x, y): y > x for all x, y ∈ U}, then find the domain and range of R❓? |
Answer» Thanks shivam..?<br>Domain=1 2 3Range= 2 3 4<br>X+1=yX=1, 2 ,3 ,4 | |
573. |
Suchiii......schl lg gye na isliye |
Answer» Hmm<br>Khi na laga<br>Kya | |
574. |
Perfect....WAU |
Answer» ?<br>What r u doing.....<br>Good | |
575. |
Who is not happy with his style ? Rather behaviour |
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576. |
Sochta hu ki wo kitne masum the Kya se kya hogye dekhte dekhte True (for time) |
Answer» ???<br>Subjects .<br>??<br>wow ♥️ | |
577. |
Micallaneous exercise of 9th chapter |
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578. |
Direct question to #shareef vidyarthi From which mental hospital are you released just now? |
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579. |
If f(x) = x^2-1/x^1+1, then prove f(x) + f(1/x) = 0 |
Answer» Hhbnanakwowi | |
580. |
Tomorrow is my physics exam...❤feeling nervous...anything that can support me plz tell..☺️☺️ |
Answer» Jo question poochna h vo daal den jab mai online hogi toh bata dungi.<br>Sahil tumne bataya nahi ki tumhe kya poochna hai.?<br>All the best.<br>Online exam hoga ya offline<br>Practise karo aur think positive | |
581. |
Chapter one The setA={x:x€Z, x2 |
Answer» Roaster forma){×:×£N,1< .<4}b){×:×£R,-1<×<3}c){×:×£Z,-1<×<5}? Please give me answer<br>Thanks for help ??<br>?<br>A={-4,-3,-2,-1,0,1,2,3,4} | |
582. |
Anyone know where is diksha who all called Diku ? |
Answer» Ya bro?<br>Don\'t know | |
583. |
√1+sinA/1-sinA=tan(π/4+A/2) |
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584. |
Kiske school khulre hai mere to khul gye |
Answer» Mere khulne walen hai | |
585. |
How many 3 digits number can be formed by using digits 1 to 9 if no digit is repeated |
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586. |
Find union of sets x=(1,3,5) |
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587. |
Can anyone give answer to my ques I asked previous night ? |
Answer» That is not true and satisfactory for me . Even you know the change... | |
588. |
Coordinates?? |
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589. |
Evaluate 3^x/2 + 3 / 3^x + 9 ? |
Answer» 3 | |
590. |
π+π/2=? |
Answer» 180°+90°=270°...I hope you are asking for converting it into degree.... | |
591. |
Sin theta/cosec theta +cos theta/sec theta=1 |
Answer» Sin theta/cosec theta+ cos theta/ sec theta main Cosec ko1/sin aur sec ko 1/cos main convert karenge Phir sin/1/sin ho jayega +cos/1/cos ho jaega Phir sin×sin+cos×cos thenSin^2theta+cos^2theta=1 H.P | |
592. |
All formulas of trigonometry?? |
Answer» Great<br><br>See ncert book ?.... | |
593. |
Can I Select mathematics test |
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594. |
Trigonometry? |
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595. |
Series n sequence?? |
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596. |
Sin2x/1-cos2x=cotx |
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597. |
Sinx² - logx |
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598. |
Question number 5 of exercise 5.3 of class 11th |
Answer» Just use the quadratic formula -b+-√b2-4ac/2a | |
599. |
Cos (3pie/4+x)-cos (3pie/4-x)=-root2 sinx |
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600. |
how many terms of the ap -6, -11/2 , -5 are needed to give the sum -25 |
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