Question

(1 - sin theta + cos theta)² ≡ 2(1 - sin theta)((1 - cos tetha)

Answer 1

Answer:

$r \: h \: s \\ 2(1 - \sin( \alpha ) )(1 - \cos( \alpha ) ) \\ 2(1 - \sin( \alpha ) - \cos( \alpha ) + \sin( \alpha ) \cos( \alpha ) ) \\ ( 1 - \sin( \alpha ) + \cos( \alpha ) ) {}^{2}$

Step-by-step explanation:

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