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Find the principal solution of sec x =2/√3 |
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Answer» Step-by-step explanation: secx = 2 /√3 ☑ principal SOLUTION = The solution of trigonometric equation of an UNKNOWN angle angle 'x ' , where 0 < x < 2π , are called it's principal solution ☑ so we have, secx = 2/ √3 , we have to FIND its principal solution ,MEANS the values of angle x BELONGS to 0 < x < 2π secx = 2 /√3, secx = sec ( π / 6 ) , sec x = sec(2π - π/ 6 ) = sec(11π /6) therefor , 0 < π/6 < 2π and 0< 11π /6< 2π therefore, the principal solutions are x = π / 6 and x = 11π/6 |
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