Question

integral of: x sqrt. ( 25 - (x^2))

Answer 1

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Answer 2

sub =25-u^2

Answer 3

u=25-x^2

Answer 4

25 - x^2 = t
-2xdx = dt

int egral
-0.5 root(t)dt

Answer 5

its relatively easy to pick the substitutions , whatever is in the bracket or has the largest power is usually what you sub