सरल कीजिए : (a+b+c)^(2) +(a-b+c)^(2) +(a+b-c)^(2) | CLASS 9 | बीजीय सर्वसमिकाएँ | MATHS | Doub...

Simplify: (a+b+c)^(2)+(a-b+c)^(2)+(a+b-c)^(2)

If a^(2) + b^(2) + c^(2) = 2(a +2b -2c)-9 then find a+b+c =?

((a-b)^(3)+(b-c)^(2)+(c-a)^(3))/(9(a-b)(b-c)(c-a))=?

Prove that ((a+b+c)(b+c-a)(c+a-b)(a+b-c))/(4b^(2)c^(2))=sin^(2)A

If   ( a -5 )^2 + ( b - c )^2 + ( c - d )^2 + ( b + c + d - 9 )^2 = 0 , then find the value of ( a + b + c ) ( b + c + d ) is