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

cos(480) can also be written as cos(2π+2π/3) , now we know that, value of cos(2π) is 0, so now we get cos(2π/3) that is , cos(π/2 + π/6) , that is cos(90+30), which is -sin(30) and its value is -1/2. And it should be -sin(1125). It can also be written as -sin(6π + π/4), and value of 6π is 0. So we get -sin(π/4) and it is -sin(45) and its value is -1/√2

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What is the value of 1*2*3*5**8*8*9*6*5*4*46÷4*6*4*4*0*8*4*2*1?????

Posted by Devansh Karnwal 6 years ago

CBSE > Class 11 > Mathematics

6 answers

Yash Taneja 6 years ago

Its very simple 95,385,600÷0 =not defined

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Gunjan Kumar 6 years ago

0 answer

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Jatin Dahiya 6 years ago

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Devansh Karnwal 6 years ago

Infinity

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Khushreet Aulakh 6 years ago

Not defined

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Deep Singh 6 years ago

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Give the questions of transition formula

Posted by Iranna Kumbar 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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Ex 3.3

Posted by Nana Li 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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Sum of n AMs between a and b is

Posted by Subir Deb 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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If the coefficient

Posted by Sahil Gedhar 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Himanshu Yadav 6 years ago

Multiple of x or any variable

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Number of all four digit nos. having diff. digits formed of the digits 1,2,3,4 and 5 and divisible by 4 is.

Posted by Rounak Soni 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Soumyadeep Paul 6 years ago

There are 6 ways for this. For divisibilty by 4, the last two digits must be divisible by 4 . So in case 1, lets take 1 in units place and 2 in tens place. So it forms 12 in last two digits of the four digit no. , which is divisible by 4. Now, we've used up 2 out of 5 digits, so we are left with 3 digits, so the possible ways are 3x2=6 ways. In case 2, if we take 24 in last two digits , we again get same answer of 6 ways

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Find the H. C. F of 4!,5!and6!

Posted by Shivam Sharma 6 years ago

CBSE > Class 11 > Mathematics

5 answers

Jatin Dahiya 6 years ago

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Gaurav Goyal 6 years ago

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Soumyadeep Paul 6 years ago

6! = 6 x 5 x 4 x 3 x 2 x 1 5! = 5 x 4 x 3 x 2 x 1 4! = 4 x 3 x 2 x 1 Therefore HCF is 4 x 3 x 2 x 1 = 24 4!

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Bharat Bhatt 6 years ago

Hcf of 4! ,5!,6!= 24 means 4!

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Pranav Pandey 6 years ago

4! i.e 24

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i^9+i^19

Posted by Jams Rang 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Pratham Marathe 6 years ago

It's 0 i -i=0

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Nishok Shibu Krishna 6 years ago

Can we study together

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Find the coordinates of vertices of triangle whose midpoints are (2,1) (-5,7)& (-5,-5).

Posted by Alok Dewahe 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Alok Dewahe 5 years, 11 months ago

Hoew

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Shubhendra Pratap Singh 6 years ago

Vertices are : A(2,-11) ;B(2,13) ;C(-12,1)

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Find the square root of 3-4i

Posted by Sanjay Singh 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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Find dervative by first principle tan x

Posted by Gurman Singh 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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find the value of x and y by all the three methods 3x +y/8 =l.59 and 3y - x/7 + 9 1/8 = -13.2

Posted by Shrikant Valvi 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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20÷3

Posted by Subash Tripathy 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Himanshu Yadav 6 years ago

6*2/3

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Shashank Mishra 6 years ago

6.666666

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Find the equation of the straight line which cuts off intercept on x-axis which is twice than of on y-axis and which is at a unit from origin.

Posted by Mohd Saklain 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Shubhendra Pratap Singh 6 years ago

Is it : x+2y-2=0

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Posted by Aman Nigam 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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Cos x². Find D.C. by first principle

Posted by Harsh Vardhan 6 years ago

CBSE > Class 11 > Mathematics

2 answers

Manikya Kishore Varshney 6 years ago

-2Sinx^2

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Harsh Vardhan 6 years ago

Dyueue

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X lim to 0 sin√x-sin√a /x-a

Posted by Abhishek Jain 6 years ago

CBSE > Class 11 > Mathematics

0 answers

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Express -4 in degree

Posted by Ujjwal Rajput 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Shubhendra Pratap Singh 6 years ago

-229°5'27"

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Find domain

Posted by Akarsh Kumar 6 years ago

CBSE > Class 11 > Mathematics

1 answers

Yogita Ingle 6 years ago

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.
- Domain can be found if – 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}.

To find the domain we need to look at the values of the independent variables which are allowed to use as explained above i.e no zero at the bottom of fraction and no negative sign in square bracket.

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Chapter 9 miscllanous excercise

Posted by Chirag Dhaima 6 years ago

CBSE > Class 11 > Mathematics