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Adi

· started a discussion

· 1 Months ago

Q85 (Question: 398329.0 )

Answr s crrct... Take negative sign of underfoot then solve... U ll get b= -6 and a=15

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)


Adi

· commented

· 1 Months ago

a+3/b =-3 and a-1/b-1 =-2
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