Basic Mathematics

Basic Mathematics

Q-1 Angle always measure in --------
(a) Radian (b) Steradion
(c) A&B (d) None

Q-2 1 right angle = -----------
(a) 400 grade (b) 100 grade
(c) 300 grade (d)) None

Q-3 1 rad= --------
(a) 56×570 (b) 57×270
(c) 630 (d) None

Q-4 1min= ----------
(a) 60² (b) 70²
(c) 80² (d) None

Q-5 Cot (900-f)=?
(a) Sec f (b) Tan f
(c) Cot f (d) None

Q-6 Cot (1800-f) = -x , find x
(a) Cot f (b) Secf
(c) Tan f (d) None

Q-7 In 1st quadrant all T- ratio are
(a) + ive (b) -ive
(c) 0 (d) None

Q-8 Sec f = 1/?
(a) Cos f (b) Sec f
(c) Tan f (d) None

Q-9 In θ = l/r , l and r are
(a) Arc and radius (b) Arcs
(c) Ratio (d) None

Q-10 (Newton)0 = ?
(a) Newton (b) 1
(c) 2 (d) None

Q-11 log¥1=?
(a) 0 (b) 1 (c) 3 (d) None

Q-12 Sin 1200=?
(a) Ö5/2 (b) Ö3/2 (c) 2 (d) None

Q-13 Tan 900/Cot 900
(a) ¥ (b) 0 (c) 2¥ (d) None

Q-14 2×718 is value of -------
(a) 2e (b) e (c) 8e (d) None

Q-15 If base of log is e then it is
(a) Neperian log (b) Common log
(c) A & B (d) None

Q-16 log 1050 is
(a) Natural logarithm (b) Common logarithm
(c) A & B (d) None

Q-17 log (14×7) = log 7×log ……..
(a) 7 (b) 14
(c) 8 (d) 9

Q-18 In 1975 characteristic is …..
(a) 3 (b) 2
(c) 4 (d) 8

Q-19 Log7=?
(a) 1×567 (b) 0×8451
(c) 2×871 (d) 4×8451

Q-20 Antilog 0 would be….
(a) 1 (b) 2
(c) 3 (d) 9

Q-21 7, 70,700 have mantissa….
(a) 0 (b) 1
(c) 2 (d) 3

Q-22 d/dx(x15)
(a) 15x143 (b) 15x14
(c) 15x (d) None

Q-23 By d/dt we mean that
(a) Diff. w. r t t (b) Diff w.r.t x
(c) Diff. w. r. t h (d) None

Q-24 d/dx (Cosx) = ……..
(a) -Sin x (b) Cos x
(c) Tanx (d) None

Q-25 d/dx (2009) = ?
(a) 0 (b) 2
(c) 8 (d) 9

ANSWER and REASONS:-

1 (a) Radian
2 (b) 100 grade
3 (a) 56×570
4 (a) 60²
5 (b) Tan f
6 (a) Cot f
7 (a) +ive
8 (a) Cos f
9 (a) Arc and radius
10 (b) 1
11 (a) 0 = Log 1 =0
12 (b) Ö3/2
13 (a) ¥
14 (b) e
15 (a) Neperian log
16 (b) Common logarithm
17 (b) 14
18 (a) 3 =4-1=3
19 (b) 0×8451
20 (a) 1
21 (a) 0
22 (b) 15x14
23 (a) Diff. w. r .t t
24 (a) -Sin x
25 (a) 0