t=" \frac{3}{4} \times 8" align="absmiddle" class="latex-formula">
1 answer:
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Come on now, check your book on the "product to sum" identities
![\bf cos({{ \alpha}})sin({{ \beta}})=\cfrac{1}{2}[sin({{ \alpha}}+{{ \beta}})\quad -\quad sin({{ \alpha}}-{{ \beta}})]](https://tex.z-dn.net/?f=%5Cbf%20cos%28%7B%7B%20%5Calpha%7D%7D%29sin%28%7B%7B%20%5Cbeta%7D%7D%29%3D%5Ccfrac%7B1%7D%7B2%7D%5Bsin%28%7B%7B%20%5Calpha%7D%7D%2B%7B%7B%20%5Cbeta%7D%7D%29%5Cquad%20-%5Cquad%20sin%28%7B%7B%20%5Calpha%7D%7D-%7B%7B%20%5Cbeta%7D%7D%29%5D)
For converting polar to cartesian form we know
Given equation is
We can simplify it as
Now we can write it as
Now we can use
So equation we can write it as
On squaring both sides
Given equation is
We can simplify it as
Now we can write it as
Now we can use
So equation we can write it as
On squaring both sides