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Cos4x=cos2x find the general solution of this

Posted by Unique #Seraj Ali ??? 5 years, 4 months ago

CBSE > Class 11 > Mathematics

3 answers

Suman Chaudhary 5 years, 3 months ago

General formula of cos x is 2n pai + - y

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Unique #Seraj Ali ??? 5 years, 3 months ago

Suno tum ek app download karlo ncert book philoid usi mai tyagi divi aur mai hu. Usme pink colour ka dabba hoga usme jaake make your account. Ok usi pe milenge

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Unique #Seraj Ali ??? 5 years, 3 months ago

Hii meri bahan

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ANSWER

Solve all miscellaneous problems

Posted by Sree Ram P M 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the domain and range of f(x) = 5/3-x2

Posted by Diya Bhardwaj 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Unique #Seraj Ali ??? 5 years, 4 months ago

(Infinity,5/3)

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n(AnB'nC') how to find n(A) from this

Posted by Usha Rani 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Chapter 2 exercise 2.3 question no.1

Posted by Ashi Choubey 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

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find the domain and range of the f(x) =-|x|

Posted by Maulik Pratap Rana 5 years, 4 months ago

CBSE > Class 11 > Mathematics

3 answers

Suman Chaudhary 5 years, 3 months ago

Domain = Real number

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Vanshika Goyal 5 years, 3 months ago

Domain- real Range - (-infinity , 0)

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Prabhat Singh 5 years, 4 months ago

Integers

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ANSWER

{x:x+5/x-7*-5=4x-40/13-x}

Posted by Pratik Patel 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

write in roster form a={x:x belongs to z and 1/x is an integer}

Posted by Mahendhiran Mahi 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

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write in roster form a={x:belongs to z and 1/x is an integer}

Posted by Mahendhiran Mahi 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Mahendhiran Mahi 5 years, 4 months ago

write in roster form a={x:xbelongs to z and 1/x is an integer}

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Prove that - sin(x+y)/sin(x-y)=tan x + tan y/tan x-tan y

Posted by Rajni Dwivedi 5 years, 4 months ago

CBSE > Class 11 > Mathematics

2 answers

Prabhat Singh 5 years, 4 months ago

Itna aage kaha padh lete ho sab

1Thank You

Gaurav Seth 5 years, 4 months ago

Step-by-step explanation:

To prove, .

L.H.S.

Using trigonometric identity,

and

Dividing numerator and denominator by , we get

= R.H.S, proved.

Hence,

4Thank You

ANSWER

if a+ib/c+id=p+iq prove that p2+q2=a2+b2/c2+d2

Posted by Saundarya Singh 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Principles of mathematical

Posted by Ashok Kumar 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

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Principles of mathematical

Posted by Ashok Kumar 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

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From chapter5

Posted by Dharmendra Shukla 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

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Mam Rdsharma examples

Posted by Dharmendra Shukla 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Class 12 5 years, 4 months ago

You can search it on google it shows vedantu and byju site where you can get your rd sharma examples of a particular chapter please type chapter name over there not number because in rd sharma chapter numbers are different from ncert book? got it

2Thank You

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Sir, or mem , I can't study better at home , because at home time waste ,so when school open

Posted by Magan Garval 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Unique #Seraj Ali ??? 5 years, 4 months ago

1 September may be or 17 September and yaha koi teacher nahi hai yaha sab student hai ????

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What is equal set

Posted by Kritika Gupta 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Gaurav Seth 5 years, 4 months ago

Two sets A and B can be equal only if each element of set A is also the element of the set B. Also if two sets are the subsets of each other, they are said to be equal. This is represented by:

A = B

A ⊂ B and B ⊂ A ⟺ A = B

If the condition discussed above is not met, then the sets are said to be unequal. This is represented by

A ≠ B

1Thank You

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If we taken maths basic in 10 class and choose commerce without maths in 11 class then can we get accountancy????

Posted by Manisha Dhibar 5 years, 4 months ago

CBSE > Class 11 > Mathematics

4 answers

Manisha Dhibar 5 years, 4 months ago

But this is my friend 's question

0Thank You

Manisha Dhibar 5 years, 4 months ago

Thanku guys

0Thank You

Varun Mangla 5 years, 4 months ago

Yes Manisha you can get it easily...?

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Gaurav Seth 5 years, 4 months ago

Accounts is a main and Compulsory subject

With or without maths

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Guys, if we choose commerce without maths in 11 class then what are subjects we got nd will we got accountacy???

Posted by Manisha Dhibar 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Varun Mangla 5 years, 4 months ago

The subjects u would get are: 1)English 2)Business Studies 3)Economics 4)Accountancy 5)Physical education or Hindi or I.P(it will depend on ur choice)

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ANSWER

what is set. ? ??

Posted by Vaishali ..... 5 years, 4 months ago

CBSE > Class 11 > Mathematics

3 answers

Harman Singh 5 years, 4 months ago

Set is 1 chapter of class 11

0Thank You

Naresh Gour 5 years, 4 months ago

Well defined collection of objects which not change person to person

1Thank You

Yogita Ingle 5 years, 4 months ago

Simply put, it's a collection of objects
Examples
N : the set of all natural numbers
Z : the set of all integers
Q : the set of all rational numbers
R : the set of real numbers
Z+ : the set of positive integers
Q+ : the set of positive rational numbers, and
R+ : the set of positive real numbers
Set of even numbers: {..., -4, -2, 0, 2, 4, ...}
Set of odd numbers: {..., -3, -1, 1, 3, ...}
Set of prime numbers: {2, 3, 5, 7, 11, 13, 17, ...}
Positive multiples of 3 that are less than 10: {3, 6, 9}

1Thank You

ANSWER

HAPPY INDEPENDENCE DAY GUYS ??????????????????

Posted by Unique #Seraj Ali ??? 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

1/√8-Π7+1/√5-√6

Posted by Ahmed Raza 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Show that the sum of (m+n)^th and (m-n)^th terms of an A.P. is equal to the twice of the m^th term

Posted by Sanchita Sharma 5 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Show that cos4x=1-sin²x.cos²x

Posted by Infinite Voice 5 years, 4 months ago

CBSE > Class 11 > Mathematics

4 answers

Manisha Dhibar 5 years, 4 months ago

8 is missing

0Thank You

Manisha Dhibar 5 years, 4 months ago

Yes

0Thank You

Sanchita Sharma 5 years, 4 months ago

LHS : cos4x=cos2(2x) =1−2sin22x =1−2(sin2x)2 =1−2(2sinxcosx)2 =1−8sin2xcos2x = RHS

0Thank You

Sanchita Sharma 5 years, 4 months ago

cos4x=1-sin²x.cos²x here 8 is missing I thought

1Thank You

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What are allied angles

Posted by Anurag Rauniyar 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Gaurav Seth 5 years, 4 months ago

Trigonometric Ratios of Allied Angles

Two angles are said to be allied when their sum or difference is either zero or a multiple of 90°. The angles — θ, 90° ± θ, 180° ± θ, 270° + θ, 360° —θ etc., are angles allied to the angle θ, if θ is measured in degrees.

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Find the domain and range of of square root x minus one into 3 - x

Posted by Shavitaj Kaur 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Sanchita Sharma 5 years, 4 months ago

We have, f(x)=(x−1)(3−x) Now, Under square root the polynomial must be positive. The domain is obtained by solving:- (x−1)(3−x)≥0 You can obtain the zeroes of the polynomial (x−1)(3−x)=0 If x−1=0 x=1 If 3−x=0 ⇒x=3 So, x=1,3 So the polynomial is solved in the external intervals. x>1,x>3 So, x∈(1,+∞) Since the function f(x) is positive, due to result of square root, The range includes all positive real numbers x≥0 Hence, this is the answer.

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Is logarithm and other functions, out from ncert important for Boards?

Posted by Sairaj Killedar 5 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Gaurav Seth 5 years, 4 months ago

HRD Minister Ramesh Nishank announced a major CBSE syllabus reduction for the new academic year 2020-21 on July 7 which was soon followed by an official notification by CBSE on the same.

Considering the loss of classroom teaching time due to the Covid-19 pandemic and lockdown, CBSE reduced the syllabus of classes 9 to 12 with the help of suggestions from NCERT.

The CBSE syllabus has been rationalized keeping intact the learning outcomes so that the core concepts of students can be retained.

<font color="#FF6600"><font style="box-sizing: border-box;">Revised Curriculum for the Academic Year 2020-21</font></font>

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