If a, b, c are real numbers such that a + b + c = 0 and a2 + b + c? =1, then
(3a + 5b - 8c)2 + (-8a + 3b + 5c)2 + (5a - 8b+ 3c) is equal to
(1) 49
(2) 98
(3) 147
(4) 274
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Step-by-step explanation:
why the Cartesian plane is also called X-Y plane
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