1) If (√3)5×92=3n×3√3, then the value of n is: A) 2 B) 3 C) 4 D) 5 Answer: Option DExplanation:(√3)5×92=3n×3√3 ⇔(312)5×(32)2 =3n×3×312 ⇔3(12×5)×3(2×2) =3(n+1+12) ⇔3(52+4) =3(n+32) ⇔n+32=132 ⇔n=(132−32) =102=5