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Question
Solve for x : cos `(x/(2)+10°) = (sqrt3)/(2)`
Sum
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Solution
cos `( x/2 + 10°) = (sqrt3)/(2)`
cos `( x/2 + 10°)` = cos 30°
`(x)/(2)` + 10° = 30°
x = 40°
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Trigonometric Equation Problem and Solution
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Chapter 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - TEST YOURSELF [Page 335]
