Respuesta :

Hrishii

Step-by-step explanation:

[tex](sin^2 \theta + cos^2 \theta)(sin \theta + cos \theta) \\ = 1 \times (sin \theta + cos \theta) \\ ( \because \: sin^2 \theta + cos^2 \theta = 1)\\ = sin \theta + cos \theta \\ [/tex]