AP EAMCET Engineering 2018 Apr 24 Shift 1 Paper

Section: Mathematics

Question : 6 of 160

Marks: +1, -0

A set of values of θ for which the system of equations
(sin 3θ) x - y + z = 0
(cos 2θ) x + 4y + 3z = 0
2x + 7y + 7z = 0
has lion-trivial solutions, is

(n + 1)
π
2
+ (−1)n
π
4

(here n is any integer)
(n - 1)
π
2
+ (−1)n
π
3

(here n is any integer)
nπ
2
+ (−1)n
π
6

(here n is any integer)
nπ + (−1)n
π
6

(here n is any integer)

Validate

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sin‌3‌θ	−1	1
cos‌2‌θ	4	3
2	7	7