Find all the solutions of sec theta - 2 = 0. It says use "or" as necessary and gives an example of kpi.

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Mathematics

Krish Dougherty

30 May, 13:45

Find all the solutions of sec theta - 2 = 0. It says use "or" as necessary and gives an example of kpi.

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Ashly Wyatt · Answer 1

we are given the equation sec theta - 2 = 0 and is asked to determine the value of theta. We can simplify the equation into sec theta = 2. secant is the inverse of cos so the equation is transformed to cos theta = 1/2. cos theta is positive only in the first and fourth quadrants. hence theta is equal to pi/3 n and 5 pi over 3 n where n is an integer