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Class 9MathematicsNumber SystemsExponentsHard
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What is the value of (17^2+5^4)?

Answer and explanation

Correct answer: 914

Evaluate the powers first: \(17^2=17×17=289\) and \(5^4=5×5×5×5=625\). Therefore, \(17^2+5^4=289+625=914\), so option C is correct. Option B results from an incorrect addition. Exam tip: calculate each power separately and add the results only at the end to avoid computation errors.

Related tags

ExponentsNumber SystemsArithmetic OperationsPowersMathematicsClass 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)?
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