Example

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

Question

$$\sin^{2}15^{\circ}+\sin^{2}75^{\circ}=$$

Answer

$$sin(15*deg)^2+sin(75*deg)^2$$

Solution


Remove parentheses.
\[\sin^{2}(15deg)+\sin^{2}(75deg)\]
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