Home
Class 11
MATHS
cos1^(@)+cos2^(@)cos3^(@)...+cos179^(@)"...

`cos1^(@)+cos2^(@)cos3^(@)...+cos179^(@)" is "`

A

0

B

1

C

-1

D

89

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • GOV. MODEL QUESTION PAPER - 1

    SURA PUBLICATION|Exercise Section - II|10 Videos

  • GOV. MODEL QUESTION PAPER - 1

    SURA PUBLICATION|Exercise Section - III|11 Videos

  • DIFFERENTIAL CALCUS - DIFFERENTIABILITY AND METHODS OF DIFFERENTIATION

    SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS SECTION-D (5 MARKS)|4 Videos

  • GOVT. MODEL QUESTION PAPER - 2 (2018 - 19)

    SURA PUBLICATION|Exercise SECTION - IV|13 Videos

Similar Questions

Explore conceptually related problems

Find the value of ((cos1^(@)+sin1^(@))(cos2^(@)+sin2^(@))(cos3^(@)+sin3^(@))...(cos 45^@sin45^@))/( cos1^(@)cos2^(@)cos3^(@)...cos45^(@))

cos 1^(@) + cos 2^(@) + cos 3^(@) + ….+ cos 179^(@) =

cos 1^(@) + cos 2^(@) + cos 3^(@) + . . . . + cos 179^(@) = ....................

The value of cos 1^@ . Cos 2^@ , cos 3^@ cos 179 ^@ is equal to

Prove that cos 24^(@)+cos 55^(@)+cos 125^(@)+cos 204^(@)+cos 300^(@)=1/2

Prove that cos 2 0^(@)cos4 0^(@)cos6 0^(@)cos8 0^(@)=1/16

cos 1^@ + cos 2^@ + cos 3^@ + cos 4^@ + ……….. Cos 179^@ = …………………….. .

Prove that cos A cos 2A cos 2^(2) A cos 2^(3)A....cos 2^(n-1) A=(sin 2^(n) A)/(2^(n) sin A)