Texas Instruments Inspire CX trigonometry calculations for statics problem

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Pete789
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1. I have two calculators. including the Texas inspire cx. I can't make either of them work reliably on trig questions. I have an exam sunday and i need to be sure how to use my inspire.
2. Summation: [50][0.5] + [50][0.07cos35] + [100][0.1cos35] = 13.55
3. Now i got this formula off my uni textbook. However, i consistently get the wrong answer. The internet and the book that came with my inspire are useless.

Anyone with an inspire or casio fx82au.. please help

Pete
 
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If you are using degrees in your trig formulas, make sure the calculator is set to degrees rather than radians.
 
Yep right, got it thanks Steamking. Now it works

Peter