Math, asked by Sumitdeepak, 1 year ago

evaluate (9.9) whole cube by using suitable identity

Answers

Answered by jesuschrist
10
hope it helped!!!!
pls mark as brainliest if it helped!!!!
Attachments:

jesuschrist: is it correct????
Sumitdeepak: No it's wrong . First See my question carefully​ (9.9) is there not 99
Answered by snehitha2
64
(9.9)³

→ (100-90.1)³

(a-b)³ = a³-b³-3ab(a-b)

→ (100)³-(90.1)³-3(100)(90.1){100-90.1}

→ 1000000-731432.701 - 27030(9.9)

→ 1000000-731432.701-267597

→ 970.299

Hope it helps

Sumitdeepak: Yes thanku
Similar questions