Find the measure of angle y when Tan Y is 4/20

Question

0

817

3

Guest Jul 24, 2015

+23245

+5

Best Answer

Tan(Y) = 4/10

---> Y = Tan^-1(4/10)

---> Y = 21.80° or 0.38^r (approximately)

(Assuming that the uppercase T in Tan means that you want only the principal value.)

geno3141 Jul 24, 2015

geno3141 · Answer 1 · 2015-07-24T08:01:23

Tan(Y) = 4/10

---> Y = Tan^-1(4/10)

---> Y = 21.80° or 0.38^r (approximately)

(Assuming that the uppercase T in Tan means that you want only the principal value.)

Guest · Answer 2 · 2015-07-24T08:04:15

I guess I meant tan, didn't know the caps made a difference!

geno3141 · Answer 3 · 2015-07-24T08:07:53

Without the uppercase T, you may need to give all the answers, which is done by adding (and subtracting) all whole number multiples of 180° (or π/2).

For instance: T = 21.80° ± k·180° (where k is any whole number)