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

1 min = 360 revolutions Therefore 1 sec = 360/6 = 6 revolutions Now for 1 revolution = 360° 6 revolutions = 360°*6 =2160 Now change 2160 into radian Ans. 12 pia

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2-3=

Posted by Dheet Singh 6 years, 11 months ago

CBSE > Class 11 > Mathematics

3 answers

Vinay Gautam 6 years, 11 months ago

-1

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Avinash Kumar 6 years, 11 months ago

-1

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Veena Singh☺️? 6 years, 11 months ago

-1

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ANSWER

How to learn alll the trignometric formulaes in class xi

Posted by Sußrat Shakya 6 years, 11 months ago

CBSE > Class 11 > Mathematics

3 answers

Veena Singh☺️? 6 years, 11 months ago

Make a chart of all formulaes and paste in your room and read it everyday. It will definately work .i have tried it

4Thank You

Priya Dharshini ? 6 years, 11 months ago

Try to derive all formula it makes u easy to memorize the formula It is better than byhearting them. U will surely forget it within 1 week. Try to derive it. It is my suggestion

4Thank You

Kunal Agrawal 6 years, 11 months ago

Try to understand their derivations

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Tanx=underroot 3

Posted by Harsh Vaedhan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Veena Singh☺️? 6 years, 11 months ago

If u want to find the value of x then answer is 60° or π/30

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Neeta Rawat 6 years, 11 months ago

X=60

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What is fibbonaci sequence

Posted by Jr. Fermino 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Kunal Agrawal 6 years, 11 months ago

In mathematics, the Fibonacci numbers, commonly denoted Fₙ form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1. That is, and for n > 1. One has F₂ = 1.

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😜Arnav Arya🙃 6 years, 11 months ago

Sequence forned by fibbonaci numbers each no. is the sum of two preceding once starting from 0 and 1

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9^n-8^n-1 is divisible by 8

Posted by Vipin Nahar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Calculate the mean deviation about the median of the following observations 1. 34,66,30,38,44,50,40,60,42,51

Posted by Anjali Raj 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Faizan Ayyub 6 years, 11 months ago

Mean deviation about median is 10

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What is the units digit of the product of all prime number between 1to 100

Posted by Khushi Karan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Derivative of sin(x+a)

Posted by Yash Gangwar 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Ashish Kumar Singh 6 years, 11 months ago

Using chain rule , d(sin(x+a))/dx = [d(sin(x+a))/d(x+a)] × [d(x+a)/dx] = [cos(x+a)] × [1+0] = cos(x+a)

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Centre at (0,0) ,major axis on the y-axis and passes through the points (3,2) & (1,6)

Posted by Shivani Tripathi 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the formula for standard deviation and variance

Posted by Sangeeth M?? 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Gaurav Seth 6 years, 11 months ago

Standard Deviation Formula:

σ = {tex}\sqrt{\frac{\sum \left ( x-\bar{x} \right )}{N}}{/tex}

Where,

σ is the standard deviation

x Indicates each value of the population

x¯ shows the mean of all values

N is the total number of values

The variance is written as σ²

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How to solve root tanx by first principles method

Posted by Vivek Kemwal 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Jahnvi Singh 6 years, 11 months ago

Tan(x+h)-tan(x)÷h= then break tan into sin/cos, then take l.c.m. and substract , then use formula sin(a+B) and at last put all h as 0 because the limit taken as h tends to 0........ :)

2Thank You

Sangeeth M?? 6 years, 11 months ago

(tan(x+h)-tanx)^1/2 use tanx - tany formula and solve

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The line segment joining a(6,3) and b(_3,5) is doubled in length by having half its length added to each end. Find the coordinates of the new ends

Posted by Kumar Manglam 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Keshav Bindal 6 years, 11 months ago

(15/2 , 2) ; (3/2 , 6)

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ANSWER

Baniomal

Posted by Dalveer Singh 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

The distance between the foci of an ellipse is 10 and its latus rectum is 15 find its equation referred to its axes as axes of coordinates

Posted by Aditi Shourya 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

26×82

Posted by Shivam Mathur 6 years, 11 months ago

CBSE > Class 11 > Mathematics

4 answers

Jahnvi Singh 6 years, 11 months ago

2132 is the answer :)

0Thank You

Simran Sian 6 years, 11 months ago

2132

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Jyotsana Singh 6 years, 11 months ago

2132 it's a answer

1Thank You

Annie D'Souza 6 years, 11 months ago

2136

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A={1,2},b={x:x € N x2 -9= 0}.find A×b

Posted by Shashank Shashank 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Abdul Kalam 6 years, 11 months ago

Ansare

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Prove that the four lines a x plus minus b y plus minus c equal to zero enclose a rhombus whose area is to 2C square by ab

Posted by Vinita Gupta 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Trigonometry is of how many marks??

Posted by Ishita Singhal 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Ishita Singhal 6 years, 11 months ago

But I have calculated the marks of the questions given in cbse sample paper and it was of 15..... That's why I am confused. ..

0Thank You

Sagar Gupta 6 years, 11 months ago

There will be two questions one of 4 marks and other of 6 marks

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Why 0 power of 1 =1

Posted by Md Hasrat 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Mayank Singh 6 years, 11 months ago

Any no. Which has power 0 then the value of that no. Is 1

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ANSWER

Cos7x-cos8x÷1+2cos5x=cos2x-cos3x

Posted by Rakesh Indoria 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

find 'e' of hyperbola x^2 - y^2 + 4x =0 plz..........answer......

Posted by Yakshi Baliyan 6 years, 11 months ago

CBSE > Class 11 > Mathematics

2 answers

Aman Kumar 6 years, 11 months ago

√2 is the answer....

2Thank You

Nancy Rajput 6 years, 11 months ago

root 2

1Thank You

ANSWER

Plzz tell the marking scheme

Posted by Jas Kirat 6 years, 11 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Prove that : a cos A +b cos B+ c cos C=2 a sin B sin C

Posted by Singh Rajput 6 years, 11 months ago

CBSE > Class 11 > Mathematics

1 answers

Ram Kushwah 6 years, 11 months ago

We know     a / sin A = b / sin B = c / sin C.
                   b = a cos C + c Cos A
                   c = a Cos B + b cos A

LHS = a cos A + (a cos C + c cos A) cos B + (a cos B + b Cos A) cos C
        = a cos A + cos A (c cos B + b Cos C) + 2 a Cos C Cos B
        = a cos A + cos A * a + 2 a cos C cos B
        = 2a [cos A + Cos C Cos B]
        = 2 a [ cos (π-B-C) + cos C cos B]
        = 2 a [- cos (B+C) + cos C cos B]
        = 2 a Sin B sin C

Read more on Brainly.in - https://brainly.in/question/1122558#readmore

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deritives

Posted by Rupesh Kumar 6 years, 11 months ago

CBSE > Class 11 > Mathematics