Question

57. (3) ब्यंजक ( =frac{(81)^{3.6} times(9)^{2.7}}{(81)^{4.2} times 3} )
( =frac{left(3^{4}right)^{3.6} timesleft(3^{2}right)^{2.7}}{left(3^{4}right)^{4.2} times 3} )
( =frac{3^{14.4+5.4}}{3^{16.8+1}}=frac{3^{19.8}}{3^{17.8}} )
( =3^{19.8-17.8}=3^{2}=9 )

# 57. का मान है। (81)36x(9)2.7 (81)42 x (3) (1) 3 (3) 9 (2) 6 (4) 8.2

Solution