Explore topic-wise InterviewSolutions in Class 11.

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.

9051.

Sin[x-π/6]+cos[x-π/3] =√3sinx

Answer»
9052.

Anyone has math syllabus??

Answer» @S.A.l.O.N.I.. yes 11th class<br>Abhijeet..11th class<br>For which class
9053.

What\'s up dude

Answer»
9054.

hello everyone ?

Answer» Hi friend<br>???... Heyy!! How are uhh?<br>It\'s looking like ice cream ?<br>Hi
9055.

Sec4x - sec2 x,=tan4x- tan2x

Answer» Prove the following identitessec4x - sec2x = tan4x + tan2xSOLUTIONLHS = sec4x - sec2x= sec2x(sec2x - 1)= (tan2x + 1)(tan2x) (∵ sec2x - tan2x = 1)= tan4x + tan2x=RHSHence proved.
9056.

(-1÷2+iota√3÷2)^900 +(-1÷2-iota√3÷2)^301

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9057.

Chapter 2 exercise 2.3 question number 5

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9058.

2 5 5 %!

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9059.

Every relation is a function .True or false

Answer» False<br>False<br>All functions\xa0are\xa0relations, but not\xa0all relations\xa0are\xa0functions.\xa0Relations\xa0...
9060.

Is the derivation of formula of slope of a line important (can it come in exam)??

Answer» No<br>Sayad nahi...
9061.

Write the value of the square root -i

Answer» Only i<br>+- i
9062.

What is relation ?

Answer» A relation R from a non-empty set A to a non-empty set B is a subset of the cartesian product set A × B. The subset is derived by describing a relationship between the first element and the second element of the ordered pairs in A × B.The set of all first elements in a relation R is called the domain of the relation B, and the set of all second elements called images is called the range of R.
9063.

How many elements has P(A), if A={}

Answer» X + iy = ( a^2 + 1)^2/2a - i, find x^2+ y^2<br>0 elements<br>(null)<br>0<br>We know that if A is a set with m elements i.e.,\xa0n(A)=m,\xa0then,\xa0n[P(A)]=2m.If\xa0A={} =ϕ, then\xa0n(A)=0∴n[P(A)]=2o=1Hence, P(A) has one element.
9064.

Find range of fx= 1+3cos2x

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9065.

Find the value cosec(-1200°)

Answer» -√3/2<br>S e x p o rn
9066.

Find the sign of expression sin100°+cos100°

Answer» Sin 100° + cos 100°= sin 100° + cos ( 90°+10°) =sin 100°+(-sin10°) (By the formula cos (π/2+x)= -sin x) =2 cos((100+10)/2)* Sin((100-10) /2) =2cos 55°*sin45°=2cos 55°* 1/√2=√2*√2 cos 55°*1/√2=√2cos 55° Or = (1.4)*(0.57) =0.8<br>sin 100° + cos 100°= sin100° + cos(90°+10°)[cos 10° becomes sin 10°]= sin100° + sin 10°by the formula,sin C + sin D = 2cos\xa0sin= 2cos\xa0sin= 2cos\xa0\xa0sin\xa0= 2cos55° + sin45°= 2cos55° + 1/√2=√2.√2 cos55° .1/√2= √2cos55°
9067.

Find the smallest and greatest values of sinx.cosx

Answer» A n s w e r :\xa0Maximum value is 1/2 and minimum value is -1/2.EXPLANATION:sin cos x = 1/2(2 sin x cos x)= sin 2x/2Hence, the Maximum value is 1/2 and minimum value is -1/2.
9068.

sin(60+A)+sin(60-A)sinA=sin3A÷4

Answer»
9069.

Tell me about straight line

Answer» Points make a line which is said as a straight line.
9070.

Compute 2! +3! . Is 2! +3! =5!

Answer» 2!+3!=2*1+3*2*1=8No<br>2! + 3!=2×1+3×2×1=2+6=8But in 5!=5×4×3×2×1=1208 is not equal to 120Hence ,2!+3! is not equal to 5!HOPE IT WILL HELP ??????
9071.

Find n if n-1P3:P4 = 1:9

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9072.

a n = n (n+2)

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9073.

document.write("abcde")var a = 12 b = 12document.write(a+b)

Answer» ....<br>Testing...
9074.

4+4-9√-9

Answer» 8-9i
9075.

Find the radion measure of 75

Answer» 5π/12 radian<br>75°=75xπ/180 = 5π/12 Hence 75°=5π/12
9076.

Trigonometry function ex.3.3 25no

Answer»
9077.

solve the following inequalities graphically into two dimensional plane 2x+y>,6

Answer» The graphical representation of 2x+ y= 6 is given in the figure below.This line divides the xy-plane in two half planes, I and II.Select a point (not on the line), which lies in one of the half planes, to determine whether the point satisfies the given inequality or not.We select the point as (0, 0).It is observed that,2(0) + 0 ≥ 6 or 0 ≥ 6, which is false.Therefore, half plane I is not the solution region of the given inequality.Also, it is evident that any point on the line satisfies the given inequality.Thus, the solution region of the given inequality is the shaded half plane II including the points on the line.This can be represented as follows.<hr />\xa0
9078.

I asked where is Diksha not if you know her.. anyone knows ?

Answer» Kisi ko nhi pata kya aadya ki wo kaha gyi aur kyu nhi aati sb thik hai ?<br>Jahan rahati h wahin hogi.??
9079.

Give example for deliy life in subset?

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9080.

Prove that n(n+1) (n+5) is a multiple of 3 for all n belongs to N.

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9081.

find the domain of real function f(x)= √2-3x.

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9082.

{1+cot x- sec(π\\2+x)} {1+cot x+sec(π/2+x)}=2cot x

Answer»
9083.

Write 5 examples of empty set?

Answer» There are some sets that do not contain any element at all. For example, the set of months with 32 days. We call a set with no elements the\xa0null\xa0or\xa0empty\xa0set. It is represented by the symbol { } or Ø.Some examples of null sets are:The set of dogs with six legs.The set of squares with 5 sides.The set of cars with 200 doors.The set of integers which are both even and odd.<br>Iske example nhi ho sakte because empty set ke andar tho ek bhi element aahi nahi sakhtha<br>{ } or fie
9084.

Prove that n(n+1)(n+2)is divisible by 6?

Answer» Let p(k) = n(n+1)(n+2) divisivle by 6For n = 1 ,p(k) is true Let for n = k ,p(k) is trueFor n = k+1:(k+1)(k+2)(k+3)k(k+1)(k+2)(k+3)/k divisible by 6So by mathematical induction , statement is true for all n€N
9085.

Where do I find the activities related to mathematics?

Answer» O labs<br>Google
9086.

tha value of tan1 tan2 tan4 and ______tan89

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9087.

F(x){3x²-2,x

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9088.

Hii friends kis kis ke november se midterm exam start hone wale h

Answer» 35.5 out of 40 but I lost in science chemistry and physics<br>Mine are done and results also declared
9089.

Question no. 5 exercise 12.2

Answer»
9090.

Find the derivatives by first principle; √2x+3

Answer» Root of two is answer
9091.

Value of sin135° ?

Answer» Ok.... Thanks...<br>1/√2<br>Mera bhi kabse open hai<br>1/root2<br>my answer is root2/2root is only at numerator.
9092.

Find :$$\\dfrac{d}{d(x^2 + 8/x + 9)} sinx + logx^2 + e^{\\sqrt{tanx}}$$

Answer» $$\\boxed{\\; \\; \\; \\; \\;Bharat\\ Senior\\ Secondary\\ School, Bhopal\\\\ \\; \\; \\; \\; \\;\\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; NOTICE \\\\Date:23 \\ November,2020 \\\\ \\; \\; \\;\\; \\; \\; \\; \\; \\; \\;CULTURAL \\ FESTIVAL \\\\ The \\ school\\ is\\ going\\ to\\ organize\\ a\\ cultural \\\\ festival\\ next\\ month .\\ All\\ the\\ class \\\\ representatives\\ are\\ requested\\ to\\\\ attend\\ a\\ meeting\\ with\\ the\\ principal\\\\ to\\ decide\\ the\\ details\\ regarding \\ the\\ same \\\\ The meeting\\ will\\ be\\ held\\ on\\ 27\\ November \\\\ 2020 \\ at\\ 2:30\\ pm\\ onwards\\ in\\ the\\ meeting\\\\ room \\\\ Sandeep \\\\(Cultural Secretary)}$$<br>$$\\boxed{\\; \\; \\; \\; \\;Bharat\\ Senior\\ Secondary\\ School, Bhopal\\\\ \\; \\; \\; \\; \\;\\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; \\; NOTICE \\\\Date:23 \\ November,2020 \\\\ \\; \\; \\;\\; \\; \\;CULTURAL \\ FESTIVAL \\\\ The \\ school\\ is\\ going\\ to\\ organize\\ a\\ cultural \\\\ festival\\ next\\ month .\\ All\\ the\\ class \\\\ representatives\\ are\\ requested\\ to\\\\ attend\\ a\\ meeting\\ with\\ the\\ principal\\\\ to\\ decide\\ the\\ details\\ regarding \\ the\\ same \\\\ The meeting\\ will\\ be\\ held\\ on\\ 27\\ November \\\\ 2020 \\ at\\ 2:30\\ pm\\ onwards\\ in\\ the\\ meeting\\\\ room \\\\ Sandeep \\\\(Cultural Secretary)}$$<br>$$\\boxed{\\; \\; \\; \\; \\;Bharat\\ Senior\\ Secondary\\ School, Bhopal\\\\ \\; \\; \\; \\; \\;\\; \\; \\; \\; \\; \\; \\; NOTICE \\\\Date :23 \\ November,2020 \\\\ \\; \\; \\;\\; \\; \\;CULTURAL \\ FESTIVAL \\\\ The \\ school\\ is\\ going\\ to\\ organize\\ a\\ cultural \\\\ festival\\ next\\ month .\\ All\\ the\\ class \\\\ representatives\\ are\\ requested\\ to\\\\ attend\\ a\\ meeting\\ with\\ the\\ principal\\\\ to\\ decide\\ the\\ details\\ regarding \\ the\\ same \\\\ The meeting\\ will\\ be\\ held\\ on\\ 27\\ November \\\\ 2020 \\ at\\ 2:30\\ pm\\ onwards\\ in\\ the\\ meeting\\ room \\\\ Sandeep \\\\(Cultural Secretary)}$$<br>$$\\boxed{\\; \\; \\; \\; \\;BHARAT\\ SENIOR\\ SECONDARY\\ SCHOOL, BHOPAL\\\\ \\; \\; \\; \\; \\;\\; \\; \\; \\; \\; \\; \\; NOTICE \\\\Date :23 \\ November,2020 \\\\ \\; \\; \\;\\; \\; \\;CULTURAL \\ FESTIVAL \\\\ The \\ school\\ is\\ going\\ to\\ organize\\ a\\ cultural \\\\ festival\\ next\\ month .\\ All\\ the\\ class representatives\\\\ are\\ requested\\ to\\\\ attend\\ a\\ meeting\\ with\\ the\\ principal\\\\ to\\ decide\\ the\\ details\\ regarding \\ the\\ same \\\\ The meeting\\ will\\ be\\ held\\ on\\ 27\\ November \\\\ 2020 \\at\\ 2:30\\ pm\\ onwards\\ in\\ the\\ meeting\\ room \\\\ Sandeep \\\\(Cultural Secretary)}$$<br>$$\\boxed{\\; \\; \\; \\; \\;BHARAT\\ SENIOR\\ SECONDARY\\ SCHOOL, BHOPAL\\\\ \\; \\; \\; \\; \\;\\; \\; \\; \\; \\; \\; \\; NOTICE \\\\Date :23 \\ November,2020 \\\\ \\; \\; \\;\\; \\; \\;CULTURAL \\ FESTIVAL \\\\ The school is going to organize a cultural \\\\ festival next month . All the class representatives are requested \\\\ to attend a meeting with the principal to \\\\ decide the details regarding the same \\\\ The meeting will be held on 27 November 2020 \\\\ at 2:30 pm onwards in the meeting room \\\\ Sandeep \\\\(Cultural Secretary)}$$
9093.

Find the domain and range of the function f(x)=√1-x

Answer»
9094.

Find a,b if (a-b)+(a+b)I= a+5i

Answer» a-b = a → b=0a+b=5 →a+0=5 →a=5\xa0a=5\xa0&\xa0b=0<br>a-b = a → b=0a+b=5 →a+0=5 →a=5 $$a=5 & b=0$$<br>b=al+5il-10i/2(1-l)<br>a=5,b=0
9095.

lim x →1and x^ 4 -3x^ 2 +2 ÷ x^ 3 -5x^ 2 +3x+1

Answer»
9096.

find the domain and range of the following function f x is equal to root x square - 9Plz tell

Answer» Thanks bhai<br>is it sufficient if not then sorry<br>if x=3 which is your domain f(3)=root3square-9then it gives you 0 that will be your rangeif x=-3 which is your domain f(3)=root(-3)square-9then it gives you 0 that will be your range<br>Range kaise nikal li todha describe kr ke ga bhai kyon ki woh toh meri bhi aagy par copy mai kaise likhu<br>3 and -3 are the domains and 0 is the range
9097.

define ellips, parabola.. ✍✍✍

Answer» Parabola:\xa0A parabola is the set of all points in a plane that are equidistant from a fixed line and a fixed point (not on the line) in the plane. Fixed line is called\xa0directrix\xa0of parabola/Ellipse:\xa0An ellipse is the set of all points in a plane, the sum of whose distances from two fixed points in the plane is a constant.
9098.

Draw a quadrilateral in the cartesian plane, whose vertices are (0 , 7) and (4 ,5

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9099.

Find the conjugate of 11 i - 7.

Answer» The perfect answer is -7-11i<br>-7+11i<br>7+11i<br>-7+11i<br>-7-11i
9100.

28.Reduce the equation\xa0√3x+y-8\xa0into normal form. Find the values of p and\xa0omega

Answer» Xcos 30°+xsin30=4