Questions
The value of , is
detailed solution
Correct option is B
We have,cosπ15cos2π15cos3π15cos4π15cos5π15cos5π15cos6π15cos7π15=cosπ15cos2π15cos4π15cos7π15×cos3π15cos6π15×cos5π15=cosπ15cos2π15cos4π15cosπ−8π15cos3π15cos6π15 ×cosπ3=−cosπ15cos2π15cos4π15cos8π15×cos3π15cos6π15×12=sin24×π1524sinπ15×sin22×3π1522sin3π15×12=−sin16π1516sinπ15×sin12π154sin3π15×12=116×14×12=127Talk to our academic expert!
Similar Questions
is equal to
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests