MATH 215 Midterm: exam1f16sol
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S r t s x + y + z = 1 x y + z = 2 . S t r t t (2, 1, 3) . T t r t (1, 1, 1) (1, 1, 1) ts t t cos = 1/3 ts . Ts s r f (x, y) = x2 + y. T r t s f = (2, 1) ts . T r t st st s t s (2/ 5, 1/ 5) ts . R t st st s t s s t t t r t t t r t t r t s ( 2/ 5, 1/ 5) ts t t r t s r ( 1/ 5, 2/ 5) ts . Ts t f (x, y) = f (x2 +y2)+g(xy) r f g r t s. S r ss f (2) = 1 f (2) = 2 g( 1) = 1 .
