1.

If p/q = r/s = t/u = √5, then what is the value of [(3p2 + 4r2 + 5t2) /(3q2 + 4s2 + 5u2) ]?1). 1/52). 53). 254). 60

Answer»

<P>Here, p = √5q

R = √5s

⇒ t = √5u

Now, substituting above values in REQUIRED value

⇒ [(3(√5q) 2 + 4(√5s) 2 + 5(√5u) 2) /(3q2 + 4s2 + 5u2) ]

⇒ 5[(3q2 + 4s2 + 5u2)/(3q2 + 4s2 + 5u2) ]

∴ answer is 5



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