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rohit

· started a discussion

· 1 Months ago

Cal mistake (Question: 398329.0 )

it should be (a)

Question:

If a and b are integer of opposite signs such that (a + 3)2 : b2 = 9 : 1 and (a – 1)2 : (b – 1)2 = 4 : 1 then the ratio of a2 : b2 is –

Options:
A)

9 : 4

B)

81 : 4

C)

1 : 4

D)

25 : 4

Solution:

Ans: (d)


mrinal shastry

· commented

· 1 Months ago

yes
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