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Write the equation of the normal to t...

Write the equation of the normal to the curve `y=cosx` at `(0,\ 1)` .

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Given,y=cosx
To find normal we have to find slope of that normal at (0,1) `y'=−sinx`
`m=1/(sinx)_(​x=0)​=∞`
∴ Equation of normal
...
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