If a + b + c = 0 , `1/a + 1/b + 1/c = 0` , find the value of `a^2 + b^2 + c^2`

If [ [ 1 , 0 , 0 ] , [ 0 ,1 , 0 ] , [ 0 , 0 , 1 ] ] [ [ a ] , [ b ] , [ c ] ] = [ [ 2 ] , [ 1 ] , [ -3 ] ] , then find the value of a + b + c

If a + b + c = 2, 1/a+1/b+1/c=0, ac=4/b and a^3+b^3+c^3=28 , find the value of a^2+b^2+c^2 . यदि a + b + c = 2, 1/a+1/b+1/c=0, ac=4/b तथा a^3+b^3+c^3=28 है, तो a^2+b^2+c^2 का मान ज्ञात कीजि ए।

If a b c=0 , then find the value of {(x^a)^b}^c (a)1 (b) a (c)b (d) c

If a+b+3c=1 and a gt 0, b gt 0, c gt 0 , then the greratest value of a^(2)b^(2)c^(2) is

Given a skew symmetric matrix A = [ (0, a , 1),(-1, b, 1),(-1, c, 0)] , the value of (a + b + c)^2 is

If 2a+b+3c=1 and a gt 0, b gt 0, c gt 0 , then the greatest value of a^(4)b^(2)c^(2)"_____" .

If a ,\ b ,\ c >0 such that a+b+c=a b c , find the value of tan^(-1)a+tan^(-1)b+tan^(-1)c .