Find the value of x, when: 2-4 = 1/2x
3
2
4
5
Express -1/343 in exponential form
(-1)6/26
(-1)4/94
(-1/7)3
None of these
Find 'n' so that (2/5)6 × (2/5)3 = (2/5)3n - 1
10/3
5/4
7/2
113 × 115 = ________
11
112
118
1115
Simplify: (3-3) -1
1/27
81
27
-9
125/343
225/243
343/125
243/225
Find the value of x, when 36 × 6x = 68
6
10
8
7
Evaluate: (-3/4)5
-243/1024
-343/1084
243/1024
343/1084
8o + 5o + 3o = ___________
28
17
16
[(3/2)2]2 = ______
81/16
9/4
343/16
343/64