WBJEE 2015 Solved Mathematics Question Paper – Part 1
Hariom Singh
Jan 24, 2017 16:00 ISTFind WBJEE 2015 Solved Mathematics Question Paper – Part 1 in this article. This paper consists of 10 questions from WBJEE 2015 Mathematics paper. Detailed solution of these questions has been provided so that students can match their solutions.
About WBJEE Exam
WBJEE is a common entrance examinations held at state level for admission to the Undergraduate Level Engineering and Medical courses in the State of West Bengal. The WBJEE engineering entrance exam has two sections – Mathematics, Physics and Chemistry. The Mathematics section of WBJEE 2015 engineering entrance exam consists of 80 questions.
Importance of Previous Years’ Paper:
Previous year question papers help aspirants in understanding exam pattern, question format, important topics and assessing preparation. It has also been seen that sometimes questions are repeated in WBJEE Exam. So, this paper will certainly boost your confidence.
(A) 10
(B) 12
(C) 8
(D) 16
Ans. (B)
Sol.
By applying L Hopital’s rule:
(A) 1
(B) 2
(C) 3
(D) -1
Ans. (B)
Sol.
(A) 1
(B) 2
(C) 3
(D) 4
Ans: (C)
Sol.
We have,
The graph of the above function can be shown as below:
So, the given equation has three real solutions.
5. Which of the following is not always true?
(A) 1
(B) 2
(C) – 1
(D) 0
Ans. (A)
Sol.
Let
Ans: (A)
Sol.
Let,
Ans: (A)
Sol.
10. If A and B are two matrices such that AB = B and BA = A, then A2 + B2 equals
(A) 2AB
(B) 2BA
(C) A + B
(D) AB
Ans. (C)
Sol.
A2 + B2 = A.A + B.B = A (BA) + B (AB) = BA + AB = A + B
Recommended in Engineering Exams
Latest
- JEE Main 2019: Result will be announced by 31st January, know what to do next?
- JEE Main Question Papers 2019
- JEE Main 2019: Minimum Marks (Expected) required to qualify for JEE Advanced 2019
- UPSEE Solved Question Paper 2018
- JEE Main 2019 Answer Key: Last day to raise objections, Check complete procedure
Read
- Most Important Questions for JEE Main & Advanced 2019
- JEE Main 2019: 300 Most Important Solved Questions To Boost Your Score
- Most Important 100 Chemistry Solved Questions for JEE Main 2019
- 210+ Most Important Questions for JEE Main 2019
- JEE Main 2019: Check Expected Cut-off or Qualifying Marks & Exam Analysis
