Question

Sinpi }{4}" align="absmiddle" class="latex-formula">

Answer 1

$\sin\left(\frac{\pi}{4}\right) = \frac{\sqrt{2}}{2} = \frac{1}{\sqrt{2}}$

This is something you memorize, have on a reference sheet/table, or use the unit circle.

Note: pi/4 radians = 45 degrees

Answer 2

Answer:

0.604897

Step-by-step explanation:

Step 1: Write expression

sin(sin(π/4))

Step 2: Find sin(π/4)

Remember/memorize your unit circle

sin(π/4) = √2/2

Step 3: Find sin(√2/2)

sin(√2/2) = 0.604897