What type of decimal expansion will (\frac{98}{2\cdot 5\cdot 7^3}) have?
Answer and explanation
Correct answer: Non-terminating recurring
Step 1: (98=2\cdot 7^2). Step 2: After cancellation, the denominator becomes (5\cdot 7). Since (7) remains, the decimal is non-terminating recurring. Step 3: Check whether the whole power cancels or only part of it cancels.
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What is the correct answer to this question?
Non-terminating recurring
Why is this the correct answer?
Step 1: (98=2\cdot 7^2). Step 2: After cancellation, the denominator becomes (5\cdot 7). Since (7) remains, the decimal is non-terminating recurring. Step 3: Check whether the whole power cancels or only part of it cancels.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Decimal expansion of rational numbers.
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