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MHT CET · Maths · Trigonometric Ratios & Identities

cos 1 o .cos 2 o .cos 3 o . cos 179 o =

  1. A 0
  2. B 1
  3. C -12
  4. D -1
Verified Solution

Answer & Solution

Correct Answer

(A) 0

Step-by-step Solution

Detailed explanation

cos o 1 o cos 2 o cos 3 o ....cos 90 o ....cos 179 o
=cos 1 o cos 2 o cos 3 o .....0.....cos 179 o            ( cos 9 0 o = 0 )
=0