CBSE > Class 11 > Mathematics | CBSE Board | Homework Help

The set of all possible values which qualify as inputs to a function is known as the domain of the function, or it can also be defined as the entire set of values possible for independent variables.
- The domain can be found in – the denominator of the fraction is not equal to zero and the digit under the square root bracket is positive. (In case of a function with fraction values).

For e.g. the domain of the function F is set A i.e. {India, Pakistan, Australia, Sri Lanka}.

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Sequences and series

Posted by Prasanna Durai 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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A path of width 2m is curved outside a circular field of circumference 88m. What is the ratio of the area of the path to the area of the circular field respectively?

Posted by Ram Panda 4 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Yogita Ingle 4 years, 6 months ago

Circumference of circular field =

we are given that the circumference of circular filed is 88 m

So,

We are given that A circular path of width 2 m runs around the circular field

So, outer radius R = 14+2 = 16 m

The area of the circular path=Outer area - inner area

Cost of tiling 1 sq.m. = Rs.39

Cost of tiling 188.57 sq.m. =

Hence the cost of tiling the path at the rate of rs. 39 per m square is Rs.7354.23

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cos(π÷4+x)+cos(π÷4-x)=√2 cos x

Posted by Amish Panwar 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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4C1*48C4

Posted by Shubham Draveriya 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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solve the following equation for x belongs to c: x^2 + 4ix _4=0 please tell the answer

Posted by Rajinder Rana 4 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Monika Gautam 4 years, 6 months ago

x=(-2i)

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Prove that 9^(1/3)+9^(1/9)+9^(1/27)+..... infinite=3

Posted by Sanket Arjun 4 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Śěřãj The Cute? 4 years, 6 months ago

Hii lucifer kon se lesson pe ho aur ye kis lesson ka hai. Aur bhabhi ji kaha hai

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The number of permutatios of n different object, taken r at a time, time repetition are allowed.

Posted by Vaishnavi Kundu 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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Cos20° +sin20°÷cos20°- sin20°=tan65°

Posted by Anurag Sahu 4 years, 6 months ago

CBSE > Class 11 > Mathematics

2 answers

Anurag Sahu 4 years, 6 months ago

Prove krna h

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Rohan Rohilla 4 years, 6 months ago

Tan65

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PT sinB-sinC/cosB.cosC+sinC-sinA/cosC.cosA+sinA-sinB/cosA.cosB

Posted by Naveen Rajasekar 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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combinations is in maths

Posted by Vaishu Sahu 4 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Pawan Yadauvanshi 4 years, 6 months ago

Yes

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Find the conjugate of (5+underroot2)³

Posted by Rudransh Dhasmana 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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(26+15√3)^2/3-(26+15√3)^-2/3

Posted by Akanksha Bhadoria 🙃🙃 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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find the radian measure corresponding to 5degree37minute30second

Posted by Madhur Prajapati 4 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Pragati Kashyap 4 years, 6 months ago

=5°+37'+30'' =5°+37'+(30×1/60)' =5°+37'+(1/2)' =5°+(75/2)' =5°+(75/2×1/60)° =5°+(5/8)° =(45/8)° =(45/8×π/180)radian =π/32 radian

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what is permutation ?

Posted by Vaishu Sahu 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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Yogita Ingle 4 years, 6 months ago

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 “ ⁿP_r”.

The permutation formula is given by,

P_r = n!/(n-r)! ; 0 ≤ r ≤ n

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Sin(pi+theta)Sin(pi-theta)cosec^2theta

Posted by Yogeshwara .V 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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Shweta Gupta 4 years, 6 months ago

Sin(pi+ theta)= -sin theta. becoz in third quadrant sin is -ve Sin(pi- theta)= sin theta. becoz in 2nd quadrant sin is +ve Sin( pi+theta)Sin(pi-theta)cosec^2theta = - sin theta×sin theta(cosec^2 theta) = -sin^2theta × cosec^2theta = -1 Ans=-1

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2 sin2A- 8 CosA sin^3 A = ?

Posted by Vaishnavi Dandotiya 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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J I your valuable 6g

Posted by Himanshu Choudhary 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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The order of null set is --

Posted by Mehak Dangoria 4 years, 6 months ago

CBSE > Class 11 > Mathematics

3 answers

Ayush.L .Nair 4 years, 6 months ago

{}

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Lakshmi Lakshmi 4 years, 6 months ago

(0)

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Himanshu Choudhary 4 years, 6 months ago

Xes

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3x4-5x2+7 f(x-1)find

Posted by Kritika Rani 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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What is use of probility in our life

Posted by Anurag Rathor 4 years, 6 months ago

CBSE > Class 11 > Mathematics

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Sai Sankar Jena 4 years, 6 months ago

See my friend, It was made to get to know the assumptions or the predictions of certain objects or events which we call it. First. In lower classes u have been taught about only dices,numbers or coins. Bur,further in 11th and 12th u will find probability between sets between many data in corporate world.hope u find it usefull

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Hi guys in this online class am not able to understand this functions can anyone recommend a good youtube channel

Posted by Tamanna Mahakhud 4 years, 6 months ago

CBSE > Class 11 > Mathematics