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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.
| 2401. |
(2+√3)cosx=1-sinx |
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| 2402. |
Let A , B and C be three sets such that AUB=C and A intersection B = ○/. Then prove that A=C-B. |
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| 2403. |
Find dy/dx in y=sin^-1(1-x^2/1+x^2), 0 |
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| 2404. |
What is iota? |
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Answer» In mathematics , iota (i) is defined as the square root of -1 , i.e,i= √-1Iota is a greek letter which is widely used in mathematics to denote the imaginary part of a complex number.Let\'s say we have an equation: x^2 + 1 = 0 .In this case, the value of x will be the square root of -1, which is fundamentally not possible. To solve such equations which require the square root of any negetive number, the concept of complex numbers was introduced. Iota(i) is used to denote the square root of -1. Some people may also define iota as a number whose square is -1. Now we can write the square root of any negative number using iota. For example square root of -55 will be √(55)×i. Sometimes complex numbers are used to represent coordinates in two dimensions with the X-axis representing real numbers and Y-axis representing complex numbers. For example: the coordinates (3,4) can be written as a complex number as 3+4i . This might be the case in certain topics of physics. Iota is a copmlex number. Which is represented by (i). The value of is (i=√-1) Iota is a representation of complex no whose value is √-1 |
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| 2405. |
Q 12 exercise no 15.1 |
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| 2406. |
x+3/x-2 |
| Answer» B | |
| 2407. |
Using a protactor how to draw 130 degree angle |
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| 2408. |
How to find the value of 4 root of 59319 |
| Answer» Just use to do root of it double | |
| 2409. |
What is grade? |
| Answer» In which aspect are you asking | |
| 2410. |
A intersection (b-c) = |
| Answer» {tex}A \\cap ( B - C ) = ( A \\cap B ) - ( A \\cap C ){/tex}Using Distributive Law, which we used in real numbers{tex}a \\times ( b + c ) = a \\times b + a \\times c{/tex}Similarly,{tex}A \\cap ( B - C ) = ( A \\cap B ) - ( A \\cap C ){/tex} | |
| 2411. |
Prime factorisation of 20736 |
| Answer» Prime Factors of 20736 =2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3Which is the same as = 2^8 x 3^4 | |
| 2412. |
Sin6sin42sin66sin78=1/16 |
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| 2413. |
Which is best reference for maths including ncrt solution |
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Answer» RD sharma is the best and only book have questions r given according levelwise Rd Sharma All in one (arihant) of mathematics RD Sharma RD Sharma and RS Aggarawal |
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| 2414. |
find the l c m and. hcf of following pair of number. 145 and 232 |
| Answer» 29,1160 | |
| 2415. |
In a group of 50 students, student study French, English, Sanskrit were found to be as follows |
| Answer» Give follows | |
| 2416. |
How to start study in every subject to get 95- 100% result in annual in 2020 |
| Answer» Set your goal for every subject and make your timetable | |
| 2417. |
e^sinx-1÷x |
| Answer» Lim x-: 0 | |
| 2418. |
3(x)2 +|x| Find domain |
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| 2419. |
|a+ib|=1Show that1+b+ai/1+b-ai=b+ai |
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| 2420. |
Find the vakue of 5π/3 |
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Answer» Just put the value of pie=3.14 and then calculate 5.235987756 |
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| 2421. |
Find out all the subsets of the set 0,1,2 |
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Answer» {0},{1},{2},{0,1},{0,2},{1,2},{0,1,2},¢ fai {{1},{2},{1,2},{phi}} |
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| 2422. |
Solve x power 5 - 6x power 4 + 11x power 3 - 6x power 2 = 0 |
| Answer» X=0,1,2,3 | |
| 2423. |
cosecx(secx-1)-cotx(1-cosx)=tanx-sunxSolution |
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| 2424. |
Complete the series 9,12,18,?,54,102. |
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Answer» 30 30? 30 |
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| 2425. |
Gm of roots of equation x square-18x+9=0is |
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| 2426. |
Find out all the subset of the set{0,1,2} |
| Answer» { },{0,1},{0,2},{1,2},{1},{2} | |
| 2427. |
If boy is coded as YLB then uncode NZM |
| Answer» Man | |
| 2428. |
Sin2x - sin2yCos2y - cos2x |
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| 2429. |
Which term od the G.P.:2,8,32...is131072? |
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| 2430. |
5+89+67+55+98-100+70+56=?? |
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Answer» Sorry it\'s 340 330 |
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| 2431. |
prove that tan(x+y)/cot(x-y)=sin²x-sin²y/cos²x-sin²y |
| Answer» We have sin (x + y)cos (x -- y)/ cos (x + y)sin (x -- y)==> {2sin(x + y)cos(x -- y)}/{2cos(x + y)sin(x -- y)}==> { sin 2x + sin 2y}/{sin 2x --} | |
| 2432. |
how many principal solutions are there in any trigonometric equation |
| Answer» All of identities | |
| 2433. |
Hello nyra too kb aayegi ....sets ka samjha meko kuchh....i can\'t understand ?? |
| Answer» In mathematics, a set is a collection of distinct objects, considered as an object in its own right. For example, the numbers 2, 4, and 6 are distinct objects when considered separately, but when they are considered collectively they form a single set of size three, written {2, 4, 6}. | |
| 2434. |
a(cosC-cosB)=2(b-c)cos^2A/2 |
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| 2435. |
Cos(180-theeta) |
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Answer» -cos thita Cos (π-Q) = - cos QBecause it will fall in to second quad where cosQ is negative |
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| 2436. |
(X) (X+1)(X+2) is less than or =to 0 |
| Answer» X belongs to (-infinity,-2] Union [1,0] | |
| 2437. |
Show that A union B = A intersection B implies A = B |
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| 2438. |
taking pcmb is right decision |
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Answer» Yeah it is right U\'ll always have 2 choice in career If u are good in science and maths. |
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| 2439. |
Cosec theta + cot theta= x then the value of cos theta? |
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Answer» Cosec Q + Cos Q = x1/SinQ + cosQ / sinQ = x(1+cosQ)/sinQ = x1+cosQ = xsinQCosQ = xsinQ - 1 xsinΦ - 1 |
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| 2440. |
The symbol of compliment set A |
| Answer» A\' | |
| 2441. |
prove that cosπ/15.cos2π/15.cos3π/15.cos4π/15.cos5π/15.cos6π/15.cos7π/15=1/18 |
| Answer» Someone answer it.. please ? | |
| 2442. |
What is sin square theta * sin square theta?? |
| Answer» Sin thita ka whole square | |
| 2443. |
2sin30cos theta |
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| 2444. |
Value of cot3A |
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| 2445. |
Set of rat is finite or not |
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Answer» But In sets video at cbseguide it is shown that it is infinite how? Ya it\'s finiye Finite |
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| 2446. |
Find the value of x and y if √x+y=11and√y+x=7 |
| Answer» X=4 and y=9 | |
| 2447. |
find trigonometric ratio for sin(2^ |
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| 2448. |
Find the value of x and y if root x +root y i |
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| 2449. |
Why maths is taught in school ?? |
| Answer» In order to teach the concept of day to day life | |
| 2450. |
What is mathematics ?? |
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