Question

if a square + b square + c square is equal to 16, a b + BC + CA is equal to 10, find a + b + c​

Answer 1

by formula

(a + b + c) whole square is equal to a square + b square + c square + 2 (a b + BC + CA)

equal to 16 +2 x 10=36

a + b + c whole square air is equal to 36

therefore a + b + c is equal to 6.....(ans)

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Answer 2

Answer:

Nelson Mandela was born in Mvezo, South Africa on 18 July 1918. He was in the forefront anti-apartheid movement in South Africa. In 1964 he was sentenced to life imprisonment and sent to Robben Island and released from the prison in 1990 after 26 years.