Simplification
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The square root of 0.342 × 0.684 is : 0.000342 × 0.000171
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√ 0.342 × 0.684 0.000342 × 0.000171 = √ 342 × 684 × 106 342 × 171
= √4 × 106 = 2 × 103 = 2000Correct Option: C
√ 0.342 × 0.684 0.000342 × 0.000171 = √ 342 × 684 × 106 342 × 171
= √4 × 106 = 2 × 103 = 2000
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The value of √0.441 is equal to : √0.625
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Expression = √0.441 √0.625 = √ 0.441 = √ 441 0.625 625 = 21 = 0.84 25 Correct Option: B
Expression = √0.441 √0.625 = √ 0.441 = √ 441 0.625 625 = 21 = 0.84 25
- The value of √0.000441 is equal to :
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√0.000441
= √0.021 × 0.021
= 0.021Correct Option: C
√0.000441
= √0.021 × 0.021
= 0.021
- The square root of (2722 − 1282) is :
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? = √(2722 − 1282)
= √(272 + 128)(272 − 128)
= √400 × 144
= 200 × 12 = 240Correct Option: C
? = √(2722 − 1282)
= √(272 + 128)(272 − 128)
= √400 × 144
= 200 × 12 = 240
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The square root of : (0.75)3 + [0.75 + (0.75)2 + 1 ] is : 1 − 0.75
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= (0.75)3 + (1 − 0.75) ((0.75)2 + 0.75 × 1 + 12) 1 − 0.75 = (0.75)3 + 13 − (0.75)3 0.25 = 1 = 100 = 4 0.25 25
∴ Required square root
= √4 = 2Correct Option: C
= (0.75)3 + (1 − 0.75) ((0.75)2 + 0.75 × 1 + 12) 1 − 0.75 = (0.75)3 + 13 − (0.75)3 0.25 = 1 = 100 = 4 0.25 25
∴ Required square root
= √4 = 2