. Cos15° का मान ज्ञात कीजिए?

  • 1

    (√𝟑−𝟏)/(𝟐√𝟐)

  • 2

    (𝟏−√𝟑)/(𝟐√𝟐)

  • 3

    (√𝟑+𝟏)/(𝟐√𝟐)

  • 4

    𝑵.𝑶.𝑻.

Answer:- 3

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