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The range of f = (7*x +sin(x))/(x^2 + x + 2) is of the form [a,b]. Give a and b correct to two decimal places
edit - Not a homework question. Its a Test question for revision, has me stumped
so far, I have this
clear all syms x hold on fplot(@fun2, [-6 6]); hold off x1 = fminbnd(@fun2, -6, 6); y1 = fun2(x1) y1 = sprintf('%0.2f',y1); x2 = fminbnd(@fun2_neq, -6,6); y2 = fun2_neq(x2) y2 = sprintf('%0.2f',y2)
But wouldn't I need to specify fun2_neq and fun2 in different mfiles? Also, what would I specify it as?
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You're missing a parenthesis. Is the 7*x over the quadratic, or just the sin is over the quadratic? Please fix the parentheses, then plot over -100 to 100 or something and see the shape of the curve. Make sure you use ./ instead of / and .^ instead of ^ and then you can do it without a loop, in just 3 lines of code (like I did). (Actually the range is the same no matter where you put the missing parenthesis.)