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  • a)
    13.41
  • b)
    20.46
  • c)
    21.66
  • d)
    22.35
Correct answer is option 'D'. Can you explain this answer?
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a)13.41b)20.46c)21.66d)22.35Correct answer is option 'D'. Can you expl...
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a)13.41b)20.46c)21.66d)22.35Correct answer is option 'D'. Can you expl...
3√5 + √125 = (3√5)+(√5×5×5) = (3√5)+(5√5)=8√5 =17.88

√80+6√5=(√5×2×2×2×2) + (6√5)
=4√5 + 6√5
=10√5

we know , √5=2.236
10√5=(10×2.236)=22.36 (approximately)

or

10√5=(8√5+2√5)=17.88+(2×2.236)=17.35(approximately)

so the ans is D.
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a)13.41b)20.46c)21.66d)22.35Correct answer is option 'D'. Can you explain this answer?
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