JordanJones04402
24.06.2021 •
Mathematics
Prove that
SinA÷tanA=cosA
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Ответ:
Step-by-step explanation:
sinA/tanA
=>sinA ÷ sinA/cosA
=>sinA x cosA/sinA
=>cosA
Ответ:
4y = y + 42
3y = 42
y = 14
y = 14