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CBSE Notes 2011-2012 » Exponents and Powers - Class 8 Maths MCQs (Free Practice Test)

Exponents and Powers - Class 8 Maths MCQs (Free Practice Test)


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A select subset of questions has been made available here.
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Question :

If x be any positive real number, m be an integer then x"' is called


Answer :

radical
radicand
index
none of these


Question :

Find the value of: (512)-2/9


Answer :

4
2
1|4
1|2


Question :

Evaluate : (402 + 92)


Answer :

49
42
41
50


Question :

Index of a radical is always


Answer :

positive real number
real number
natural number
integer


Question :

If x, a and b are rational numbers (x > 0), then xa x xb is equal to


Answer :

xab
xa + b
(* x *)a/b
xa/b