1. If then, y = ln ( 1+x 1−x ) − 2tan−1 x dy dx =?
A. 1 1−x2B. 2x2 1−x4C. 4x4 1−xD. 4x2 1−x4 y = ln (1 + x) − ln (1 − x) − 2tan−1 x; dy dx = 1 1+x + 1 1−x − 2 1+x2 = 4x2 1−x4
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Varsity KA Admission Model Test 9
100 questions • 60 minutes • Each correct answer carries +1 mark. Each wrong answer deducts 0.25 mark.
Exam Overview
Total Questions
100 MCQ
Duration
60 minutes
Total Marks
100
Negative Marking
-0.25
Subject-wise Distribution
| General Science | 51 |
| Chemistry | 16 |
| Physics | 12 |
| Biology | 11 |
| English | 9 |
| Mathematics | 1 |
Question Pattern Preview
2. In a cathode ray tube, the potential difference between the anode and the cathode is V. The kinetic energy of the produced electrons is proportional to what?
A. VB. √VC. V 2D. V 3/2 Ek = eV
3. What is the synonym of 'Hue'?
A. ColorB. DewC. StillD. Pursuit
4. and are two vectors. What is the value of 'a' when the two vectors are perpendicular to each other? →
A. = ˆi + 2ˆj →B. = aˆi − 2ˆjC. 4D. 8
5. Which one is gaseous oxidizing substance?
A. H2SB. Hg2Cl2C. O3D. CO
6. What is the general solution of? 2sin2θ + 3cosθ = 0
A. (2n + 1) π 2B. nπ 2C. 4nπ + π 3D. nπ + (−1)n π 2