Question

Stuck on 12cos(x)4/12
Please help >.

Answer 1

`\cos(x )=\cfrac{\stackrel{adjacent}{4}}{\underset{hypotenuse}{12}}\implies \cos(x)=\cfrac{1}{3}\implies \cos^(-1)[\cos(x)]=\cos^(-1)\left( \cfrac{1}{3} \right) \\\\\\ x=\cos^(-1)\left( \cfrac{1}{3} \right)\implies x\approx 70.5^o`

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