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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.
| 4001. |
Sin20°sin40°sin60°sin80°=3/16. |
| Answer» | |
| 4002. |
What is roster form |
| Answer» Roster form or tabular form: In this, elements of the set are listed within the pair of brackets { } and are separated by commas.For example:(i) Let N denote the set of first five natural numbers.Therefore, N = {1, 2, 3, 4, 5} → Roster Form(ii) The set of all vowels of the English alphabet.Therefore, V = {a, e, i, o, u} → Roster Form | |
| 4003. |
What is the differention of 5/t log15 t |
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| 4004. |
Mod of xsquare+x-1=2x-1 |
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| 4005. |
Find dy/dx if y =sin(x2 +5) |
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| 4006. |
What is modulus function ? Explain with an example. |
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| 4007. |
Log3 (X+1)+log3(X+3)=1 |
| Answer» 1 | |
| 4008. |
Domain of x (sq.) + 1 |
| Answer» (−∞,∞) | |
| 4009. |
If tan a=1/7 and tan b=1/3.Show that cos2a=sin4b |
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| 4010. |
Plz solve it immidiately-10+50root2÷2 |
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Answer» 45.35 6.465 |
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| 4011. |
When will revaluation results be declared for class x |
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Answer» no It got released |
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| 4012. |
6×456 |
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Answer» 2,736 2736 |
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| 4013. |
(1+sinx)^1/2 integral limit 0 to π/2 |
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| 4014. |
For any two sets A and B show thatP(A intersection B)=P(A)intersectionP(B) |
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Answer» It\'s a formula P(A)intersectionP(B)=P(A intersection B) Tumari maa ki chuuuuuu |
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| 4015. |
Cos3 theta+ 8cos^3 theta=0 |
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| 4016. |
If a rational number x/y |
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| 4017. |
Harsh paid rent cash 1000 and rent outstanding 200 |
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| 4018. |
Aap sabke maths me kitne ch. ho gye?? |
| Answer» 6 | |
| 4019. |
Cos 4x = cos 2x Find general solution for this equation |
| Answer» | |
| 4020. |
cos4x=1-8sinx cosx |
| Answer» Cos4x = 1-2sin^2 2x = 1-2(2sinxcosx)^2 =1-2(4sin^2x cos^2x =1-8 sin^2xcos^2x. ✓✓✓✓ | |
| 4021. |
What ia meaning of power sets |
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Answer» The collection of all subset of a set A is called the power set of A. It is denoted by P(A). If the number of elements in A=n, i.e., n(A) = n, then the number of elements in P(A) = 2 ki power n.☺☺☺ Colletion of all subset including "fi" also, such set are called power set ☺?☺???? The collection or family of all subset of A is called the power set of A and is denoted by P(A) |
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| 4022. |
Find the multiplicative inverse of (6+5)raised power 2 |
| Answer» -1 | |
| 4023. |
From where we should understand trigo without tuitions |
| Answer» From onlinestudy like you tube | |
| 4024. |
How many of you are in olf aligarh |
| Answer» | |
| 4025. |
What is the weightage given to chapter |
| Answer» of which chapter | |
| 4026. |
Find the area of the triangle formed by the lines x=0 ,y=1 and 2x+y=2 . |
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| 4027. |
What is a improper subset? |
| Answer» every set is a subset of itself and the empty set is also the subset of every set it is known as improper subset | |
| 4028. |
DE MORGAN\'S law proof |
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Answer» Proof of De Morgan’s law: (A ∩ B)\' = A\' U B\'Let M = (A ∩ B)\' and N = A\' U B\'Let x be an arbitrary element of M then x ∈ M ⇒ x ∈ (A ∩ B)\'⇒ x ∉ (A ∩ B)⇒ x ∉ A or x ∉ B⇒ x ∈ A\' or x ∈ B\'⇒ x ∈ A\' U B\'⇒ x ∈ NTherefore, M ⊂ N …………….. (i)Again, let y be an arbitrary element of N then y ∈ N ⇒ y ∈ A\' U B\'⇒ y ∈ A\' or y ∈ B\'⇒ y ∉ A or y ∉ B⇒ y ∉ (A ∩ B)⇒ y ∈ (A ∩ B)\'⇒ y ∈ MTherefore, N ⊂ M …………….. (ii)Now combine (i) and (ii) we get; M = N i.e. (A ∩ B)\' = A\' U B\' Proof of De Morgan’s law: (A U B)\' = A\' ∩ B\' Let P = (A U B)\' and Q = A\' ∩ B\'Let x be an arbitrary element of P then x ∈ P ⇒ x ∈ (A U B)\'⇒ x ∉ (A U B) ⇒ x ∉ A and x ∉ B⇒ x ∈ A\' and x ∈ B\'⇒ x ∈ A\' ∩ B\'⇒ x ∈ QTherefore, P ⊂ Q …………….. (i)Again, let y be an arbitrary element of Q then y ∈ Q ⇒ y ∈ A\' ∩ B\'⇒ y ∈ A\' and y ∈ B\'⇒ y ∉ A and y ∉ B⇒ y ∉ (A U B)⇒ y ∈ (A U B)\'⇒ y ∈ PTherefore, Q ⊂ P …………….. (ii)Now combine (i) and (ii) we get; P = Q i.e. (A U B)\' = A\' ∩ B\' |
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| 4029. |
There\'s no way to explain the topic. Please explain hard topics |
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| 4030. |
anyone help me in maths its urgent of chapter relation |
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Answer» 9 elements A×A some order pair (-1,0) (0,1).Now we notice order pair that -1,0,1. Given elements are (-1,0)(0,1).A has three elements.A={-1,0,1}A×A = { -1,0,1}×{-1,0,1}Hence, remaining elements of A×A--{(-1,0) (0,-1) (0,0) (1,-1) (-1,-1) (1,0) (1,1)}.???? in last how remaining elements is find expercise 2.1 question no 10 i cant understand it pls you explain me I am help you Yes iIcan help u |
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| 4031. |
Lesson 2(c) 11 |
| Answer» Lesson 2(c) qusiton no. 11 ka | |
| 4032. |
How we will find tan 40? |
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| 4033. |
Properties of modulus and conjugate of a complex number |
| Answer» | |
| 4034. |
Z+1=z+2(1+¡) |
| Answer» what we find in this question the value of Z or whay | |
| 4035. |
De morgan law |
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Answer» ohh sorry its (A union B)\' answer of nancy rajput was incorect (A union B) =A\' intersection B\' (A union B)\'= A\' intersection B\' |
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| 4036. |
2-2+4-3×3 |
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Answer» -5 is correct answer its -5 -5 |
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| 4037. |
(1+i)(1+√3i)/1-i from complex numbers solution |
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| 4038. |
Tan x=-4/3x in quadrant 2 |
| Answer» we find all 6 trignometric | |
| 4039. |
sin(B-C)/sin(B+C)=b*b-c*c/a*a |
| Answer» | |
| 4040. |
| x2-x-6 | =x+2 |
| Answer» | |
| 4041. |
cos36°.cos72°.cos108°.cos144° |
| Answer» | |
| 4042. |
2a+9d=-30 and 2a+19d=-69 |
| Answer» Plz answer fast | |
| 4043. |
every sets is a subset of itself. Is it true or false and give reason if it is true. |
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Answer» Give reason if it is true. True True |
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| 4044. |
Every set has at least two subsets. Is it true or false. And give reason if it is true. |
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| 4045. |
Cos20 ×cos40×cos80 =1÷8 |
| Answer» | |
| 4046. |
4 x minus 3 / 3 x minus 5 |
| Answer» 20 | |
| 4047. |
how to find domain and range in rational function |
| Answer» Real | |
| 4048. |
Using binom solve (1-2a)(1-2a) (1-2a)(1-2a)(1-2a) |
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| 4049. |
Axiom |
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| 4050. |
what is integration |
| Answer» Integration is the process of finding an anti-derivative of a given function f. ‘Integrate f’ means ‘find an anti-derivative of f’. Such an anti-derivative may be called an indefinite integral of f and be denoted by ∫f(x) dxThe term ‘integration’ is also used for any method of evaluating a definite integral.The definite integral can be evaluated if an anti-derivative Φ of f can be found, because then its value is Φ(b) − Φ(a). (This is provided that a and b both belong to an interval in which f is continuous.)However, for many functions f, there is no anti-derivative expressible in terms of elementary functions, and other methods for evaluating the definite integral have to be sought, one such being so-called numerical integration. | |