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log base 4[2*4^(x-2) -1]+4=2x

Posted by Disha Gupta 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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What is power of sets??

Posted by Diksha? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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What is null set?? ?

Posted by Aadya Singh 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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What is empty set??

Posted by Aadya Singh 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

? Royal Thakur ? 5 years, 7 months ago

Aap logo ne book le le h mai to phone pdta hu book nhi h aur phn se kuch smjh aata h kuch aata he nhi h... Bookshop bhi nhi lhul rhi h...

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Wbat is manner???

Posted by ? Royal Thakur ? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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How to contact mycbseguide team???

Posted by ? Royal Thakur ? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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What is universal set?

Posted by Diksha? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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What are sets??

Posted by Aadya Singh 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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When result will come of 10 do you have any idea??

Posted by ? Royal Thakur ? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

3 answers

? Royal Thakur ? 5 years, 7 months ago

Thanks both of you......

2Thank You

Pk . 5 years, 7 months ago

I think 1st or 2nd week of june

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Aadya Singh 5 years, 7 months ago

Atleast , after 2 months ?....

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What is calculation???

Posted by ? Royal Thakur ? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

2 answers

? Royal Thakur ? 5 years, 7 months ago

Thanks bro.....

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Pk . 5 years, 7 months ago

The method to reach to the conclusion of any expression is calculation

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Which is the toughest chapter of class 11 maths book

Posted by Rohit Kumar 5 years, 7 months ago

CBSE > Class 11 > Mathematics

2 answers

Amit Singh 5 years, 7 months ago

Vector algerbra calculus

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Pk . 5 years, 7 months ago

You don't say any chapter tough but yes trigonometry is very important ?

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Define arthropoda??

Posted by ? Royal Thakur ? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Raj Parjapati 5 years, 7 months ago

They are those insects have 8 or more legs in biosphere around us such as spider has 8 legs called an arthropoda.

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Difference between radian and degree measure

Posted by Ashutosh Agnihotri 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Pk . 5 years, 7 months ago

Radian has a physical relevance....i.e it is the ratio of arc and radius of same length.....Whereas degree has no such direct physical relevance, the complete angle of circle is divided into 360 degrees.

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When lockdown will open and coronavirus gets destroyed?

Posted by Gaurav Rawat 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Raj Parjapati 5 years, 7 months ago

Indian scientist not exactly but declared it may be ended in 8th august completely if lockdown remains as it is. So stay home and be safe. Now our govt. announced lockdown be for 17 or 14 may

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Prove that A is a subset of null set implies A = null set

Posted by Prabhjot Kaur Bamrah 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Ashutosh Agnihotri 5 years, 7 months ago

1. A is a member of the null set. (Given) 2. The null set has no members (By definition) 3. A is not a member of the null set. (Universal instantiation from (2)) 4. A is a member of the null set, or A is the null set (Disjunction Introduction from 1) 5. A is the null set (Disjunctive Syllogism, from 3, 4) It's not quite what you asked, but if you are not given that A is a member of the null set, you can still prove: 6. If A is a member of the null set, then A is the null set (Conditional proof, from 1, 5)

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Centre (0,2) and radius 2. Find the equation of the circle

Posted by Rahul Mahawar 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Rahul Mahawar 5 years, 7 months ago

Given h=0 k=2 and r=2 Equation of the circle (x-h)^2+(y-k)^2=r^2 (x-0)^2+(y-2)^2=(2)^2 x^2+y^2+4-4y=4 x^2+y^2-4y=0

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Using principle of mathematical induction prove x + 4 x + 3x.,..,...............+(3 n-2) x=1/2n(3n-2)x

Posted by Amit 12 Science 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Shoaib Khan 5 years, 7 months ago

Let p(n): x+4x+7x+........+(3n-2)x=1/2n(3n-2)x P(1): x=(3*1-2) x=x, so p(1) is true Now , assume that p(k) is also true for some integer k P(k): x+4x+7x+........+(3k-2)x=1/2k(3k-2)x Now , put n=k+1 P(k+1): x+4x+7x+........+(3k-2)x+{3(k+1)-2}x=1/2(k+1){3(k+1)-2}x LHS: x+4x+7x+.......+(3x-2)x+(3k+1)x From above equation 1/2k(3k-2)x+(3k+1)x Taking LCM and solving 1/2(k+1){3(k+1)-2}x....RHS.... hence proof

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What is the total number of proper subsets of a set consisting of n element

Posted by Avinash Kumar 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Yogita Ingle 5 years, 7 months ago

The number of sets of a set containing n-elements =2ⁿ .

A proper subset of a set is the set whose elements are in the given set, but it is not equal to the set.

Let S be a subset of A, S is called Proper subset if and only if it is a subset of A, and S ≠ A .

So, The number of proper subsets of a set containing n-elements is 2^{ n }- 1

As, The number of subsets contains a improper subset that is the set itself, so 1 is subtracted from number of total subsets to get number of proper subsets.

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How to find multiplicative inverse of complex numbers

Posted by Amit 12 Science 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Prabhnoor Kaur 5 years, 7 months ago

For example. We have to find multiplicative inverse of 3+2i . 3+2i Take reciprocal , 1÷ (3+2i ) Then rationalise it which is required answer

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Prove that cosx cos 2x cos 4x cos 8x= sin 16x/16 sinx

Posted by Lucifer??Morningstar?? . 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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If z1, z2 and z3, z4 are two pairs of conjugate complex numbers, prove that arg(z1/z4) + arg(z2/z3) =0.

Posted by Manoj Kumar 5 years, 7 months ago

CBSE > Class 11 > Mathematics

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What is maths???

Posted by ?Royal Thakur? 5 years, 7 months ago

CBSE > Class 11 > Mathematics

4 answers

Raj Parjapati 5 years, 7 months ago

Mental ability that deals woth logic of shapes , arrangements and quantities.

1Thank You

?Royal Thakur? 5 years, 7 months ago

Thanks everyone....

1Thank You

Jaswant Malviya 5 years, 7 months ago

Maths is the mental ability to hier something

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Lavish Kumar 5 years, 7 months ago

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It is compulsory to use this () sign in sets or can we use other sign

Posted by Saksham Bhardwaj 5 years, 7 months ago

CBSE > Class 11 > Mathematics

5 answers

Raj Parjapati 5 years, 7 months ago

It is not compulsory

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Raj Parjapati 5 years, 7 months ago

Yes we can.

1Thank You

Pk . 5 years, 7 months ago

Right...,?? We can use other sign also

3Thank You

Jaswant Malviya 5 years, 7 months ago

We can use other sign also

1Thank You

P W 5 years, 7 months ago

{}this sign is used only

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Write in set builder form A={1,5,10,15,...}

Posted by Ashrut Sood 5 years, 7 months ago

CBSE > Class 11 > Mathematics

4 answers

Lovenish Kumar 5 years, 7 months ago

The set of numbers given by you is infinite and there is no pattern in the numbers in the set, so it can not be written in set builder form. For clarity, you can read the note above example 6 of Sets which is opposite to this case.....

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Ashrut Sood 5 years, 7 months ago

Also the set contains element 1 your form does not satisfy it

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Ashrut Sood 5 years, 7 months ago

The set continues to infinity

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Yogita Ingle 5 years, 7 months ago

Let A be the set A={1,5,10,15}

We have seen that the above set is the multiple of 5.

So, The equation satisfying this set is P=5n, n is the natural number and n<3

Put n=1 , P=5

Put n=2, P=10

Put n=3, P=15

A = { 1 , 5 , 10, 15} in set builder form is

A = { P :P = 5n where n<3}

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Princi aap apni id bata do

Posted by Mansi Mishra 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

?Prince {The Love Guru}?? 5 years, 7 months ago

No profile 50 follow ad 100 following ha kya vhii ho kya tm

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How can we attain live claases

Posted by Shivam Singh 5 years, 7 months ago

CBSE > Class 11 > Mathematics

1 answers

Abhijeet Kumar 5 years, 7 months ago

You can download the zoom app and schedule the meeting with your school teachers. Make a group ?of it on whatsup and then keep learning. If you want to attend vedantu or byjus the register youfself because there is free ? registration for it these fays.

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A horse trots along a circular track of 21 feet and describes an angle of 60 degrees in 2 seconds. How much distance will the horse cover in 1 minute ?

Posted by Soundrila Paul 5 years, 7 months ago

CBSE > Class 11 > Mathematics