Question

25. ( 2)
( frac{0.41 times 0.41 times 0.41+0.69 times 0.69 times 0.69}{0.41 times 0.41-0.41 times 0.69+0.69 times 0.69} )
( =frac{a^{3}+b^{3}}{a^{2}-a b+b^{2}}=frac{(a+b)left(a^{2}-a b+b^{2}right)}{left(a^{2}-a b+b^{2}right)} )
( Rightarrow(a+b)=0.41+0.69=1.1 )

# 25. सरल कीजिए : |_041x041x041+069x0.69x0.69 |_041x041-041x0.69 +0.69x0.69 (1) 0.28 (2) 1.1 (3) 11 _(4) 2.8

Solution