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anonymous 2 years ago if tanΦ=-1/3 find sinΦ and cosΦ

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1. anonymous

|dw:1375486500757:dw| now you can find anything u like ;) always use this method

2. anonymous

$$\bf tan(\theta) = -\cfrac{1}{3} \implies \cfrac{opposite}{adjacent} \implies \cfrac{b}{a}\\ c^2 = a^2+b^2 \implies c = \sqrt{a^2+b^2}$$

3. anonymous

once you have all 3 guys, a, b and c you can find the others

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