Use the information given about the angle ?, sin ? = ?2/3, ?/2

Name: Use the information given about the angle ?, sin ? = ?2/3, ?/2 < ? < ?, to find the exact values of the following. (a) sin (2?) (b) cos (2?) (c) sin ?/2 (d) cos ?/2 (a) sin (2?) = (Type an exact answer, using radicals as needed.) (b) cos (2?) = (Type an exact answer, using radicals as needed.) (c) sin ?/2 = (Type an exact answer, using radicals as needed.) (d) cos ?/2 = (Type an exact answer, using radicals as needed.)
Uploaded: 2023-06-10T08:41:56-08:00
Duration: 4 min 10 s
Channel: Khushbu Rani

Question

Use the information given about the angle ?, sin ? = ?2/3, ?/2 &lt; ? &lt; ?, to find the exact values

Supreeta N · Accepted Answer

First, we are given that $sin(theta) = sqrt{2}$ and $0 &lt; theta &lt; 1$.

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