Give the degree measure of θ. Do not use a calculator. θ = arc csc -2?

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2006-11-29 05:41:04 · 2 answers · asked by Micki E 2 in Science & Mathematics ➔ Mathematics

I'll write t for theta.
You have csc t = -2
But csc t = 1/sin t.
So sin t = -1/2.
The angles in [0,360] that work are 210 and 330 (all
degrees)

2006-11-29 05:57:48 · answer #1 · answered by steiner1745 7 · 0⤊ 0⤋

so sin(theta) = -1/2

So, theta = 120 degrees at least.

2006-11-29 13:56:19 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 1⤋