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Aptitude ➤ Surds And Indices
1. LAWS OF INDICES:

(i)    am x an = am + n
(ii)    am / an = am - n
(iii)    (am)n = amn
(iv)    (ab)n = anbn
(v)    (a / b)n = an / bn
(vi)    a0 = 1

2. SURDS:
Let 'a' be a rational number and 'n' be a positive integer such that a1/n = n√a is irrational. Then n√a is called a surd of order n.

3. LAWS OF SURDS:
(i) n√a = a1/n
(ii) n√ab = (n√a) x (n√b)
(iii) n√(a/b) = (n√a) / (n√b)
(iv) (n√a)n = a
(v) m√(n√a) = mn√a
(vi) (n√a)m = n√am
Question 1
Q1.  Simplify : (1024)-(4/5)
Question 2
Q2.  Find the value of
   
Question 3
Q3.  Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to :
Question 4
Q4.  If (1/5)3y = 0.008, then find the value of (0.25)y.
Question 5
Q5.  The value of [(10)150 ÷ (10)146]

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