Question

9.
If logos, t° -14 logo, *'+40log., Vx = 0, then one possible value of
(a)
72
(d) none of these
te.
If 5
<1, then x e
(a) (0, 2)
02.0)
(d) none of these
(c) (0,)
11.
If log
(x - 10x + 22) > 0, then xe
fat (3,5-13) (7,00)
(C) (3,00)
(b) (3,5+13) U (13)
(d) (3,5-13) (6,)
12.
(d) none of these
If log 2 = 0.301 and log 3 = 0.477, then the number of digits in 60 is
(a) 14
(b) 15
Det 16
The number of solutions of 1 + 2 log (x+2) 5 = log (x + 2) is
(a) 1
(b) 2
(c) 0
(d) more than 2
The number of solution(s) of log. (x - 1) = log2 (x – 3) is
(a) 3
(
bt
(d) 0
The set of all x in the interval [0, 1] for which 2 sin? x - 3 sin x +120 is
(a) o
16.
Let A be average of the numbers
2sini2°, 4sin4°, 6sin6°......., 180°sin 180° then A is equal to
(B) tanlº
(C) sin 1°
(D) costº
A cot 19
Which among the following is rational
(A) cos2°
(C) cos7°
(B) cos3°
D none
The number of solutions of sec-Ocosec-0 + 2cosec-0 = 8; 0 <O<
(B)
(A) 4
(C) 0​

Answer 1

Answer:

first option a second option b third option a

Answer 2

Answer:

let the number be x

(-6)^-1 * x = ( 9 )^-1

= > 1 / 6 * x = 1 / 9

= > x = 1 / 3 x ( - 2 ) / 1

= > - 2 / 3 .

Step-by-step explanation: