Home
Class 12
MATHS
If a+b+c=7, a^(2)+b^(2)+c^(2)=9 then, ab...

If `a+b+c=7, a^(2)+b^(2)+c^(2)=9` then, `ab+bc+ca=?`

Promotional Banner

Similar Questions

Explore conceptually related problems

If a+b+c=9anda^(2)+b^(2)+c^(2)=21 , then ab+bc+ca is equal to

If a+b+c=0 and a^(2)+b^(2)+c^(2)=1, then (a) ab+bc+ca=(1)/(2)( b) ab+bc+ca=(1)/(2)( c) a^(4)+b^(2)+c^(4)=(1)/(2)( d) a^(4)+b^(4)+c^(4)=(3)/(2)

For real a, b and c if a^(2) + b^(2) + c^(2) = ab + bc + ca , then find the value of (a + b + c)^(2) A. 9a^(2) B. 81 a^(2) C. 27 a^(2) D. 24 a^(2)

If a^(2)+b^(2)+c^(2)-ab-bc-ca=0, then a+b=c( b) b+c=ac+a=b(d)a=b=c