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2020 MHT-CET PCM SET - 02 — MHT - CET STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMHT - CET2020 MHT-CET PCM SET - 021 Mark
MCQ
cos (36° - A) cos (36° + A) + cos(54° + A) cos (54° - A) = ?
  • A
    sin A
  • B
    sin 2A
  • ✓
    cos 2A
  • D
    cos A
✓

Answer

Correct option: C.
cos 2A
C

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