pls Q 12 13-23+33-43+ +93= 1) 425 2) - 425 3) 475 4) - 475 - Maths - Relations and Functions

Question

pls
Q 12 1 3 - 2 3 + 3 3 - 4 3 + + 9 3 =
1) 425
2) - 425
3) 475
4) - 475

Aarushi Mishra · Accepted Answer

13-23+33-43+ +93=13+33+53+ +93-23+43+ +83=13+33+53+ +93-2313+23+
+43=13+23+33+43+53+63+ +93-2313+23+ +43-23+43+
+83=13+23+33+43+53+63+ +93-2313+23+ +43-2313+23+
+43=13+23+33+43+53+63+ +93-1613+23+ +43Use 13+23+
+n3=nn+122=99+122-1644+122=452-16×102=425

pls Q.12. 1 3 - 2 3 + 3 3 - 4 3 + . . . + 9 3 = 1) 425 2) - 425 3) 475 4) - 475

pls
Q.12. $1^{3} - 2^{3} + 3^{3} - 4^{3} + . . . + 9^{3} =$
1) 425
2) - 425
3) 475
4) - 475