Question

15.point
que n.o.7,8,9

Answer 1

answer of questions 7,8,9 are (C)

Answer 2

Question no. 7
and
question no. 8
[16/81]^3/4
[(2)^4/(3)^4]^3/4
[(2/3)^4]^3/4
[2/3]^4*3/4
[2/3]^3
8/27

question no.9
=√300 - √48 + √75 - √147
=√100*3 -√16*3 +√25*3 -√49*3
=10√3 - 4√3 + 5√3 - 7√3
=4√3