momodagrate
30.03.2021 •
Mathematics
Given right triangle abc and sin A= 1/2, cos A = √3/2
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Ответ:
true
Step-by-step explanation:
sinA² + cosA²=1
⇔(1/2)² + cosA²=1
⇔cosA=±(√3/2)
Ответ: