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Question Number 211456 by BaliramKumar last updated on 09/Sep/24

Answered by A5T last updated on 09/Sep/24

$$maxwhen8cos\theta -8sin\theta cos\theta =0$$$$\Rightarrow cos\theta =0orsin\theta =1\Rightarrow max=8\times 1-4\times 1=4$$

Answered by mehdee1342 last updated on 09/Sep/24

$$A=-4{(sin\theta -1)}^2+4$$$$ifsin\theta =1\Rightarrow maxA=4✓$$$$$$

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