pre-calc question?

0 ⤊

Solve for exact solution

4pie + 4 tan-1 y = pie

If you can show me how you are doing it i would be appreciative.

2006-09-29 11:59:24 · 2 answers · asked by Woody Woodpecker 2 in Science & Mathematics ➔ Mathematics

2 answers

4pi + 4tan^-1(y) = pi
4tan^-1(y) = pi - 4pi
4tan^-1(y) = -3pi
tan^-1(y) = (-3/4)pi
y = tan((-3pi)/4)

y = 1

2006-09-29 14:18:52 · answer #1 · answered by Sherman81 6 · 0⤊ 0⤋

It's spelled "pi", not "pie."

4π+4 arctan y=π
Subtract 4π
4 arctan y = -3π
Divide by 4:
arctan y = -3π/4
Take the tangent of both sides:
y=tan (-3π/4)=1

2006-09-29 12:03:43 · answer #2 · answered by Pascal 7 · 0⤊ 0⤋