General
Easy
Maths-

Ifx sin space a plus y sin space 2 a plus z sin space 3 a equals sin space 4 a x sin space b plus y sin space 2 b plus z sin space 3 b equals sin space 4 b comma x sin space c plus y sin space 2 c plus z sin space 3 c equals sin space 4 c Then the roots of the equation t cubed minus open parentheses z over 2 close parentheses t squared minus open parentheses fraction numerator y plus z over denominator 4 end fraction close parentheses t plus open parentheses fraction numerator z minus x over denominator 8 end fraction close parentheses equals 0 comma a comma b comma c not equal to n pi are

Maths-General

  1. sin space 2 a comma sin space 2 b comma sin space 2 c
  2. cos space 2 a comma cos space 2 b comma cos space 2 c
  3. cos space a comma cos space b comma cos space c
  4. sin space a comma sin space b comma sin space c

    Answer:The correct answer is: cos space a comma cos space b comma cos space c

    Book A Free Demo

    +91

    Grade*