Question

Find the value of - 1. Sin 405°. Don't spam otherwise you'll be reported. ​

Answer 1

$\large\bold\red{Answered By Ayush8378 }$

Answer in attachment

Answer 2

Step-by-step explanation:

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To Find, Value of sin 405°

We Have,

sin 405° = sin[90°×4+45°]

= sin 45°

$\sf \: (Clearly,405° \: in \: the \: \underline { Ī}^{st} quadrant \: and \: the \: multiple \: of \: 90° \: is \: even.)$

$= \sf \: \frac{1}{\sqrt{2} }$

$\sf \: [sin \: 45° = \frac{1}{ \sqrt{2} } ]$