Grade 810 grade maths
If a+b+c=3,a^2+b^2+c^2=13,a^3+b^3+c^3=27Then find the values of a,b,c
If a+b+c=3,a^2+b^2+c^2=13,a^3+b^3+c^3=27Then find the values of a,b,c
1 Answer
Sirajuddin
45:
a+b+c=3
(a+b+c)2-2(ab+bc +ac)=13
32-2(ab+bc+ac)=13
ab +bc+ac=-2
Now, a3+b3+c3=27
(a+b+c)(a2+b2+c-ab-bc-ac)
Other Related Questions on 10 grade maths
Why is Axiom 5, in the list of Euclid’s axioms, considered a ‘universal truth’? (Note that the equation is not about the fifth postulate.)
Why is Axiom 5, in the list of Euclid’s axioms, considered a ‘universal truth’? (Note that the equation is not about the fifth postulate.)
10 grade maths
Last Activity: 0 Years ago
The smallest composite number is ______.
(a) 2
(b) 4
(c) 1
(d) None of these
The smallest composite number is ______.
(a) 2
(b) 4
(c) 1
(d) None of these
10 grade maths
Last Activity: 0 Years ago
Find the arithmetic mean of the first ten odd natural numbers.
Find the arithmetic mean of the first ten odd natural numbers.
10 grade maths
Last Activity: 0 Years ago