Solve a quadratic with trigonometric values in degrees

01272020, 03:41 PM
Post: #1




Solve a quadratic with trigonometric values in degrees
I'm trying to solve for x in the function:
16.1(15/cos(x))^2 + 800*sin(x)*(15/cos(x)) =2000 It should be a "zeros" problem but my HP50g calculator is making me put it in radians mode and won't solve the equation in degrees. Does anyone know what I'm doing wrong? I can't find an example like this anywhere. 

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