[ {(0.73)^{3}+(0.27)^{3}}/{(0.73)^{2}+(0.27)^{2}-(0.73) \times(0.27)} ]simplifies to

RRB RPF RPSF SI and CONS Model Papers 10 with solutions

Question : 44 of 120

Marks: +1, -0

[ {(0.73)^{3}+(0.27)^{3}}/{(0.73)^{2}+(0.27)^{2}-(0.73) ×(0.27)} ]

simplifies to

Solution:

(1) Let 0.73 = a and 0.27 = b
∴ Expression =

{a^{3}+b^{3}}/{a^{2}+b^{2}-a b}

= {(a+b) (a^{2}+b^{2}-a b )}/{a^{2}+b^{2}-a b}

=a+b=0.73+0.27=1

Go to Question:

Prev Question

Next Question