Π Π΅ΡˆΠ΅Ρ‚Π΅ ја тригономСтриската Ρ€Π°Π²Π΅Π½ΠΊΠ° Π½Π° ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π»ΠΎΡ‚ .

Answer and explanation

Correct answer: A.

Π’ΠΎ Π²Ρ‚ΠΎΡ€ΠΈΠΎΡ‚ ΠΊΠ²Π°Π΄Ρ€Π°Π½Ρ‚: .
Π’ΠΎ Ρ‚Ρ€Π΅Ρ‚ΠΈΠΎΡ‚ ΠΊΠ²Π°Π΄Ρ€Π°Π½Ρ‚: .
Π”Π²Π΅Ρ‚Π΅ Ρ€Π΅ΡˆΠ΅Π½ΠΈΡ˜Π° Π»Π΅ΠΆΠ°Ρ‚ Π²ΠΎ ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π»ΠΎΡ‚ , ΠΏΠ° Ρ€Π΅ΡˆΠ΅Π½ΠΈΠ΅Ρ‚ΠΎ Π΅ .
  1. Step 1: На тригономСтриската ΠΊΡ€ΡƒΠΆΠ½ΠΈΡ†Π° врСдноста Π½Π° косинусот Π΅ Π½Π΅Π³Π°Ρ‚ΠΈΠ²Π½Π° Π²ΠΎ Π²Ρ‚ΠΎΡ€ΠΈΠΎΡ‚ ΠΈ Ρ‚Ρ€Π΅Ρ‚ΠΈΠΎΡ‚ ΠΊΠ²Π°Π΄Ρ€Π°Π½Ρ‚.
  2. Step 2: Π—Π° Ρ€Π΅Ρ„Π΅Ρ€Π΅Π½Ρ‚Π½ΠΈΠΎΡ‚ Π°Π³ΠΎΠ» со врСдност ΠΈΠΌΠ°ΠΌΠ΅ :
Answer
.

Practise more Π€ΡƒΠ½ΠΊΡ†ΠΈΠΈ, Π΅ΠΊΡΠΏΠΎΠ½Π΅Π½Ρ†ΠΈΡ˜Π°Π»Π½ΠΈ ΠΈ логаритамски Ρ€Π°Π²Π΅Π½ΠΊΠΈ, Ρ‚Ρ€ΠΈΠ³ΠΎΠ½ΠΎΠΌΠ΅Ρ‚Ρ€ΠΈΡ˜Π°.

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