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Question

If a and b are two non-zero real numbers such that 25a2+4b2=20ab, then (5a, –2b) lies in
यदि a तथा b दो अशून्य वास्तविक संख्याएँ हैं जबकि 25a2+4b2=20ab, तब (5a, –2b) स्थित है

A
Ist or IVth quadrant
Ist या IVth चतुर्थांश में
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B
Ist or IIIrd quadrant
Ist या IIIrd चतुर्थांश में
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C
IInd or IVth quadrant
IInd या IVth चतुर्थांश में
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D
IIIrd quadrant
IIIrd चतुर्थांश में
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