Question

solve this question​

Answer 1

Step-by-step explanation:

let the triangle be right angled at A

then,

1. B+C=A=90°

$</p><p> \sin( \frac{B + C}{2} ) = \sin( \frac{90}{2} ) = \sin(45) \\ = \frac{1}{ \sqrt{2} }$

also,

$\cos(\frac{A}{2})=\cos(\frac{90}{2})\\</p><p>=\cos(45)=\frac{1}{\sqrt{2} }\\</p><p>\mathcal{PLS.\: MARK \:AS \:BRAINLIEST}$

Answer 2

Answer:

hlo

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