Trigonometry

Hong Kong

Stage 1 - Stage 3

Find the exact value of $\sin30^\circ$`s``i``n`30°.

Easy

< 1min

Find the exact value of $\cos30^\circ$`c``o``s`30°.

Easy

< 1min

Find the exact value of $\sin45^\circ$`s``i``n`45°.

Easy

< 1min

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