Trending ▼   ResFinder  

CBSE XII Pre Boards 2015 : MATHEMATICS with Answers (KV Chennai)

8 pages, 31 questions, 10 questions with responses, 26 total responses,    1    0
Kendriya Vidyalaya Air Force Stn Sulur
Kendriya Vidyalaya Air Force...,  Sulur, Coimbatore 
+Fave Message
 Home > kv_kendriya_vidyalaya_sulur >   F Also featured on: kv_kendriya_vidyalaya_iitchennai cbse12 and 2 more

Formatting page ...

KENDRIYA VIDYALAYA SANGATHAN, CHENNAI REGION PRE BOARD EXAMINATION (2014-15) Class: XII Max.Marks: 100 Subject: Mathematics Time: 3Hours General Instructions: (i) Total number of questions in the paper is 26. (ii) The question paper consists of 6 questions (Q.No.1 to 6) of 1 mark each, 13 questions (Q.No.7 to 19) of 4 marks each and 7 questions (Q.No.20 to 26) of 6 marks each. (iii) There is no overall choice. However internal choice has been provided in 4 questions four marks each and two questions of six marks each. You have to attempt only one of the alternatives in all such questions. . (iv) If you wish to answer any question, already answered for any reason, cancel the previous answer. (v) Use of calculator is not permitted. 1. What is the range of cos 1 x ? d2y dy 2. Find the order and degree of the differential equation 1 . dx 2 dx 3 3. If e 4. If p e 4 x 3x 2 , find the values of a and b. 4 2 is a unit vector and x p . x p 80 , then find x ax bx dx . 5. Write a unit vector of magnitude 9 units in the direction of vector 2i j 2k . 6. Write the direction ratios and direction cosines of the vector 2i j 3k SECTION- B 7. Let A=NXN and * be a binary operation on A defined by (a , b) * (c , d ) = ( a + c , b + d ). Show that *is commutative and associative. Also, find the identity element for * on A, if any. a a 2b 1 1 cos 1 tan cos 1 b b a 4 2 4 2 8. Prove that tan (OR) 12 1 3 1 56 sin sin 13 5 65 1 Prove the following cos 1

Formatting page ...

Top Contributors
to this ResPaper
(answers/comments)


PHYSICIST_Mainak

(5)

Ram S Kaushik

(5)

American Badass

(3)

Anonymous

(2)

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

Formatting page ...

 

  Print intermediate debugging step

Show debugging info


 


Tags : kendriya vidyalaya kv air force station sulur, coimbatore, tamil nadu, chennai, cbse pre boards, prelims preliminary exams, cbse specimen / guess / mock papers / books, cbse india portal, central board for secondary education, answer keys, top schools, cbse question bank, cbse model test papers with answers, solved question papers of cbse last year, previous years papers with solutions, free download pdf online cbse paper, cbse syllabus, pattern, dates notification, application forms, india cbse board sample last 10 years, clat important questions preparation, how to prepare, 2015, 2014.  

© 2010 - 2020 ResPaper. Terms of ServiceContact Us Advertise with us

 

ICSE Q&A - Ask and Answer
kv_kendriya_vidyalaya_sulur chat