If ( (4a ^2 )- (3b^2 )):( (2a ^2 )+ (5b ^2 ))=12:19, then a:b=___ – McqOptions

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1.	If ( (4a ^2 )- (3b^2 )):( (2a ^2 )+ (5b ^2 ))=12:19, then a:b=___
A.	2:3
B.	1:2
C.	3:2
D.	2:1
Answer» D. 2:1

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