Question

verify (a+b) +c) = a +(b+c), where a =-12, b =-9/11, c = 7/-12

Answer 1

$GIVEN \\ \\ a = - 2 \\ b = - \frac{9}{11} \\ c = - \frac{7}{ 12} \\ \\ VERIFICATION..... \\ \\ (a + b) + c) = a + (b + c) \\ \\=>\: ( - 2 + ( \frac{ - 9}{11} ) + ( - \frac{7}{12} ) = ( - 2 + ( - \frac{9}{11} ) + ( - \frac{7}{12} \\ \\ =>\:- \frac{31}{11} - \frac{7}{12} = - 2 - \frac{185}{132} \\ \\=>\: \frac{ - 372 - 77}{132} = \frac{ - 264 - 185}{132} \\ \\ =>\:449 = 449 \\ \\ Hence \: Verified.........Thnx$