1. Find the exact value of sin(2arctan 1/5) and draw a triangle to help. 2. Given y=3sin2(x+Ï€/8), fill in the blanks and sketch the graph. Amplitude: Period: Phase (horizontal) shift:
Added by Courtney G.
Step 1
To find the exact value of sin(2arctan 1/5), we can use the identity: sin(2arctan x) = 2x / (1 + x^2) So, in this case, x = 1/5. Plugging in, we get: sin(2arctan 1/5) = 2(1/5) / (1 + (1/5)^2) = 2/26 = 1/13 To draw a triangle to help visualize this, we can use Show more…
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