Question

(1 + cos theta) (1 - cos theta) =​

Answer 1

Answer:

the correct answer is

1 - cos square theta

Answer 2

${\huge{\underline{\underline{\color{blue}{\mathcal{✧Answer✧}}}}}}$

Question :

(1 + cosθ)(1 - cosθ) = ?

Solution :

(1 + cosθ)(1 - cosθ) = (1)² - (cosθ)²

∴ (1 + cosθ)(1 - cosθ) = 1 - cos²θ

∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆∆

#done ✅

#done ✅# 5 ᴛʜᴀɴᴋꜱ ᴘʟᴢ ❤️