神马作文网求教一道英文题, 前面2题 都知道, 第3问 是什么意思?谢谢!
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求教一道英文题, 前面2题 都知道, 第3问 是什么意思?谢谢!
f(x)= arcsin x + 1 – 9x2
( a ). Show that there is a root of f(x) = 0 in the interval [0.3, 0.4].
This root is to be estimated using the iterative formula
Xn+1 =√((arcsinXn+1)/9) , X0 = 0.4
( b ). Write down the values of X1, X2, X3, and X4 and hence find an approximation to this root, giving your answer to 3 decimal places.
( c ). By choosing values of x in a suitable interval show that your answer in part ( b ) gives this root of f( x ) = 0 correct to 3 decimal places.
f(x)= arcsin x + 1 – 9x2
( a ). Show that there is a root of f(x) = 0 in the interval [0.3, 0.4].
This root is to be estimated using the iterative formula
Xn+1 =√((arcsinXn+1)/9) , X0 = 0.4
( b ). Write down the values of X1, X2, X3, and X4 and hence find an approximation to this root, giving your answer to 3 decimal places.
( c ). By choosing values of x in a suitable interval show that your answer in part ( b ) gives this root of f( x ) = 0 correct to 3 decimal places.
哎,要回答这个好难啊