if x cos theta -y sin theta=a,x sin theta +y cos theta =b,prove that x square +ysquare=asquare +bsquare​

Question

if x cos theta -y sin theta=a,x sin theta +y cos theta =b,prove that x square +ysquare=asquare +bsquare​

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Luna 3 weeks 2021-11-07T10:29:47+00:00 1 Answer 0 views 0

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    2021-11-07T10:31:03+00:00

    Answer:

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