If 2x = 3√32, then x is equal to :
5
3
3/5
5/3
√7+√5 / √7 - √5 is equal to
6+√35
6-√35
1
2
If 3a = 4b = 6c and a + b + c = 27√29, then √a2+b2+c2 is
3√29
81
87
None of these
(21 .35)2 +(12.25)2 =?
171.4125
605.885
604.085
463.8125
The square root of (7 + 3√5)(7-3√5) is:
√5
4 3√5
3√5
If log10 2=0.3010 and log10 7=0.8451, then the value of log10 2.8 is
0.4471
1.4471
2.4471
[log(a2/bc)+log(b2/ac)+log(c2/ab)] is equal to
0
abc
If 2n – 1 + 2n + 1 = 320, then n is equal to:
6
8
7
If log 2=0.30103, the number of digits in 450 is
30
31
100
200
√571536/42 * ?=5850
420
240
315
325
If √2n = 64, then the value of n is:
4
12
√00004761 equals
0.00069
0.0069
0.0609
0.069
√7921 *51+374 = (?)3
16
19
15
21
The value of(1/3 log10 125- 2log10 4+log10 32) is
4/5
If log10 2=0.3010, then log2 10 is equal to
699/301
1000/301
0.3010
0.6990
87878 - 7878 - 6666- 777- 33 =?
73354
75224
72534
72524
If a + b + c = 13, a2 + b2 + c2 = 69, then find ab + bc + ca.
-50
50
69
75
If ax - b, by – c and cz – a, then the value of xyz is:
1/abc
If 5√5 x 53 + 5-3/2 = 5a+2, then the value of a is:
(13)3+73/(13)2+72-? =20
20
91
The value of √0.121 is:
0.011
0.11
0.347
1.1
If log10 2=0.3010, then value of log10 25 is
0.6020
1.2040
1.3980
1.5050
If pqr = 1, the value of the expression (1/(1 + p + q-1)) + (1/(1 + q + r-1)) + (1/(1 + r + p-1)) is equal to
p + q + r
1/(p + q + r)
p-1+ q-1+ r-1
If log8 (X2+X)-log5(x+1)=2, then the value of x is
10
25
32
The value of (log9 27+log8 32) is
7/2
19/6
If a = 0.1039, then the value of √4a2-4a+1 +3a is
0.1039
0.2078
1.1039
2.1039
If log10 5+ log10 (5x+1)= log10 (x+5)+1, then x is equal to
If log2 [log3(log2 x)]=1, then x is equal to
128
512
If x2+y2+z2-64/xy-yz-zx=-2and x + y = 3z, then the value of z is:
√53824=?
202
232
242
332