Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\cos^{3}20^{\circ}+\sin^{3}10^{\circ}=$$

Answer

$$cos(20*deg)^3+sin(10*deg)^3$$

Solution


Remove parentheses.
\[\cos^{3}(20deg)+\sin^{3}(10deg)\]
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