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Start learning 50% faster. Sign in nowLet a = 1.5, b = 2.7 and c =4.8. = [a× a × a + b × b × b + c × c × c – 3 × a × b× c] / [a × a + b × b + c × c – a × b – b × c – c × a] =[a3+b3+c3-3abc] / [a2+b2+c2-ab-bc-ca] As we know that - a3+b3+c3-3abc =(a+b+c) a2+b2+c2-ab-bc-ca =[(a+b+c) a2+b2+c2-ab-bc-ca]/ a2+b2+c2-ab-bc-ca The term (a2+b2+c2-ab-bc-ca) cancel out and leave. =(a+b+c) =1.5+2.7+4.8 = 9.
40% of 220 × 15 ÷ 20 = ?
22 – 15 + 20 × 18 ÷ 6 – 34 = ?
√4761 ÷ 23 + √12769 = ? × 58
Find the value of the given expression.
[76 – {90 ÷ 5 × (24 – 36 ÷ 3) ÷ 3}]
(? + 2180) ÷ 69 × 5 = 450
84% of 800 + 70% of 640 = 14 × ?
`(sqrt(1296)xx42)/(120+200)` = ?