Answer:
which one?
Step-by-step explanation:
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Answer: 35.3
Explanation: (-3-2-1+0+1+2+....27)/30 = 35.3
I’m pretty sure it’s 3 and a 2
Sin 3pi/4 is angle 135 degrees or 45 degrees below 180 degrees. Hence it's opposite side is 1 and adjacent is 1, implying the hypothenus is sqrt(2). Hence
Sin 3pi/4 = 1/sqrt(2). Now multiply by sqrt(2)/sqrt(2) to get:
[1/sqrt(2).] * [sqrt(2)/sqrt(2)] = sqrt2)/2
