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Class 9MathematicsNumber SystemsExponentsEasy
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What is the value of (7^4)?

Answer and explanation

Correct answer: 2401

\(7^4\) means multiplying 7 by itself four times: \(7\times7\times7\times7=49\times49=2401\). Therefore, 2401 is correct. \(343\) is the value of \(7^3\), so it is a close but incorrect option. Exam tip: the exponent tells how many times the base is multiplied by itself.

Related tags

ExponentsPowersNumber SystemsInteger PowersGrade 9 MathematicsMathematicsClass 9 Mcq
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10 more MCQs
  1. 1If A={x:x is prime and 10<x<30}, which is its roster form?
  2. 2If 0.2020020002... has no fixed repetition, what type of number is it?
  3. 3If 0.3030030003... has no fixed repetition, what type of number is it?
  4. 4If (x=\sqrt{11}) then what is (x^2+5)?
  5. 5If (x=\sqrt{3}) then what is (x^2+x^2)?
  6. 6If (x=\sqrt{2}), what is (x^2)?
  7. 7What is the value of (2^3)?
  8. 8What is the value of (5^2)?
  9. 9What is the value of (10^2)?
  10. 10What is the value of (3^2)?
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