Find the value of:
(x + y) - (x - y) when x 2 and y= -1
(m + n) - 3mn (m + n) when m = 3 and n...
Mathematics, 04.12.2020 16:30 gingerham1
Find the value of:
(x + y) - (x - y) when x 2 and y= -1
(m + n) - 3mn (m + n) when m = 3 and n = -2
(b)
Solve:
(a) If ab=2, bc = 6 and ca = 3 then find the value of a.
(b) If a + b = 5, b+c=6 and c + a = 7 then find the value of a.
[ Hint: Adding them, a +b+b+c+c+a=5+6+7)
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