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    • Posted by Arun Rajbhar 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Arun Rajbhar 6 years, 10 months ago

    I don't know

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    ANSWER

    • Posted by Mohd Kasim 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Virendra Kumaragarwal 6 years, 10 months ago

    tan180/8 tan x=2tanx/2 /1-ttan^2x/2 tan180/4=tan45=1 1=2tan45/2÷1-tan^2(45/2 1-tan^2(45/2)=2tan45/2this is quadratic in tan 45/2nowsolve

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    • Posted by Sachin Dubey 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Prashant Kumar 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Nikita Rathore 6 years, 10 months ago

    40%

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    • Posted by Johnit George 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Johnit George 6 years, 10 months ago

    thank u

    0Thank You

    Meghna Sharma 6 years, 10 months ago

    Derivative of secx is tanx secx

    2Thank You

    ANSWER

    • Posted by Vasu Jindal 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Virendra Kumaragarwal 6 years, 10 months ago

    5×4pr=6×(5pr-1) 20pr=30pr-6 -10pr=-6 pr=-6/-10 pr=3/5 r=3/5p

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    • Posted by Divanshu Bansal 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Bhaves Bhaves 6 years, 10 months ago

    Between hundred and thousand means that we want to find the number of distinct 3 digit numbers . 1st: hundredth place can be filled with any one of the 9 digits (except 0). 2nd: tenth place can be filled with any one of the 9 digits remaining (including 0). 3rd :unit's place can be filled with any one of the remaining 8 digits. Therefore total number of 3 digits numbers with distinct digits is =9×9×8 =648.

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    • Posted by Dharamendra Pal 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Jai Prakash 6 years, 10 months ago

    Total no of words are 6!/2!= 720/2 = 360 and words start with b and end with t are 4!/2!= 24/2=12.

    2Thank You

    Shubhra Nayak Parida 6 years, 10 months ago

    360 and 12 respectively

    1Thank You

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    • Posted by Vaibhav Anand 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Veer Singh 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Harshit Krishna 6 years, 10 months ago

    Tan inv(15/8)

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    • Posted by Dinesh Ashat 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Neeraj Dubey 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Virendra Kumaragarwal 6 years, 10 months ago

    leta1,a2,a3,....aabe the arithmetic mean b/w4and22 4,a1,a2....a5,22form an AP 22isthe 7thterm of APa+6d=22 4+6d=22 6d=18 d=3 a=4 a1=4+3=7 4,7,10,13,16,19,22are in AP

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    • Posted by Prashant Dubey 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Meghna Sharma 6 years, 10 months ago

    -1

    1Thank You

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    • Posted by Riya Miglani 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Vaibhav Anand 6 years, 10 months ago

    Domain-R Range-[0,1) Since we can insert any value of x but range comes out less than 1 and can be 0 for x=0 and range will not be negative as square of any negative number is positive u can also explain this by giving an example

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    • Posted by Veer Singh 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Prashant Singh 6 years, 10 months ago

    -×^-2 hoga n

    2Thank You

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    • Posted by Mr. Ajey ? 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Neeraj Dubey 6 years, 10 months ago

    Sample papers solve kr loo

    1Thank You

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    • Posted by Vashu Tewari 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Prashant Singh 6 years, 10 months ago

    x=3iby 5,minus8iby 5

    0Thank You

    Talib Gazi 6 years, 10 months ago

    10x

    2Thank You

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    • Posted by Ayush Kumar 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Ritik Rathore 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Rahul Kumar 6 years, 10 months ago

    Suppose z=2+1i 1/z =1/2+1i Rationalize so we get =2-1i/5 =2/5-1i/5 answer

    2Thank You

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    • Posted by Abinaya Sakthivel 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 3 answers

    Shivshant Prasad 6 years, 10 months ago

    hey abinaya if u want to be better results and videos to understand each question nicely u can visit to www.teachoo.com there u will get answers for each question there

    2Thank You

    Aman Kumar 6 years, 10 months ago

    Yes...both is correct..u can take from google or u can take it from this app also...

    0Thank You

    Khushii Verma 6 years, 10 months ago

    Net is nikal le

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    • Posted by Sahil Saklani 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Devansh Gangwar 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Priya Dharshini ? 6 years, 10 months ago

    It is ncert question from sequence and series u will get in this app

    0Thank You

    Xx Yy 6 years, 10 months ago

    Not questions of PMI just take 7 as common and multipy and divide by nine and apply AGP

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    • Posted by Xyz Abc 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Shivshant Prasad 5 years, 9 months ago

    Oswaal papers r best u should definitely try it

    0Thank You

    Vinayak Mishra 6 years, 10 months ago

    Arihant

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    • Posted by Dimpy Kapoor 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Sachin Tiwari 5 years, 9 months ago

    CBSE > Class 11 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Aditi Tripathi 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 2 answers

    Gaurav Seth 6 years, 10 months ago

    Given, total number of questions = 12

    Part 1 contains 5 questions and part 2 contain 7 questions.

    A student has to select 8 questions all in which there is at least 3 questions from each part. 

    Now different possibilities can occur.

       Part1 (5 questions)            Part2 (7 questions)

               3                                    5

               4                                    4

               5                                    3

    Now total number of ways is

        ( 5C3 * 7C5 ) + ( 5C4 * 7C4 ) + ( 5C5* 7C3 )

    = ( 5C2 * 7C2 ) + ( 5C1 * 7C3 ) + ( 5C0* 7C3 )

    = {(5*4*7*6)/(2*2)} + {(5*7*6*5)/(3*2)} + {(7*6*5)/(3*2)}

    = 210 + 175 + 35

    = 420 

    So, the total number of ways a student can select the questions is 420

    1Thank You

    Prashant Singh 6 years, 10 months ago

    420

    2Thank You

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    • Posted by Utsav Pandey 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Prashant Singh 6 years, 10 months ago

    2sin(a+b)/2×cos(a-b)/2

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    • Posted by Asif Khan 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Mr. Ajey ? 6 years, 10 months ago

    Ans -9, brother pg 26 .simplest question

    1Thank You

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    • Posted by Dev Sharma 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 3 answers

    Priya Gupta 6 years, 10 months ago

    2/7

    0Thank You

    Sanidhya Jadaun? 6 years, 10 months ago

    1/7.......

    1Thank You

    Muskan Khan 6 years, 10 months ago

    1/7

    1Thank You

    ANSWER

    • Posted by Sanjeet Kumar 6 years, 10 months ago

    CBSE > Class 11 > Mathematics
    • 1 answers

    Khushii Verma 6 years, 10 months ago

    Use formula Mode =3median -2mean

    0Thank You

    ANSWER

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