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Find the number of solution of 2tan^(-1)...

Find the number of solution of `2tan^(-1)(tanx)=6-xdot`

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`tan^(-1)(tanx)=(6-x)/2`
`y=tan^(-1)(tanx)`
`y=(6-x)/2`
`2y=6-x-(1)`
`x+2y-6=0-(2)`
There are 3 number of solutions of equation 1 and 2.
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