The value of25-2 is
45
425
254
52
Find the value of25-2
By using the law of exponent, a-m=1am
We have,
25-2=1252=1425=254∴25-2=254
Hence, the correct option is C.
Find the value of x so that; (i) (34)2x+1=((34)3)3(ii) (25)3×(25)6=(25)3x(iii) (−15)20÷(−15)15=(−15)5x(iv) 116×(12)2=(12)3(x−2)