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If 3sintheta+5costheta=5, then write the...

If `3sintheta+5costheta=5,` then write the value of `5sin theta-3costhetadot`

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`(3sintheta+5costheta)^2+(5sin theta+3 cos theta)^2`
`=9(sin^2theta+cos^2theta)+25(sin^2theta+cos^2theta)`
`=34`
`:. (5sin theta -3 cos theta)^2=35-25=9`
...
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