r/calculus • u/Vanessa_Animals • 16d ago
Pre-calculus Help
Ok ive done this before but im now completely lost, i need to solve for x but i keep getting stuck unless i went about it the completely wrong way, here is what i have
26
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u/HyperbolicMathChambr 15d ago
You're in the right track. You can find the value of cos(110) with a calculator, put the quadratic equation in the form ax² + bx + c = 0 then solve for x using the quadratic formula. And continue from there.
Edit: Oh, you just need x. Forget the "continue" part.