Question

(0.897)³ - (0.397)³ / (0.897×0.397+0.397×0.397+0.897×0.897) നെ ലഘൂകരിച്ചാൽ

• A. 1
• B. 1/2
• C. 1/4
• D. 1.294

Answer 1

Answer:

B. 1/2

(a³-b³)= (a-b)(a² +b²+ab) (0.897)³ - (0.397)³ / (0.897×0.397+0.397×0.397+0.897×0.897) =(0.897-0.397)(0.897×0.397+0.397×0.397+0.897×0.897)/ (0.897×0.397+0.397×0.397+0.897×0.897) =0.897-0.397 =0.5 =1/2