<|im_start|>system
You are a helpful assistant. You first thinks about the reasoning process in the mind and then provides the user with the answer.<|im_end|>
<|im_start|>user
Using the numbers [12, 30, 45, 60], create an equation that equals 270. Consider using advanced operations like trigonometry or logarithms and remember, each number can be used only once. Show your work in <think> </think> tags. And return the final equation and answer in <answer> </answer> tags, for example <answer> (sin(30) + 20) * 5 = 270 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>