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sin(45+theta)-cos(45-theta) . Find its value

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sin(45+theta)-cos(45-theta) . Find its value

    • Posted by Archana☺ Singh 6 years, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Ram Kushwah 6 years, 9 months ago

    {tex}\begin{array}{l}\sin(45+\mathrm\theta)-\cos(45-\mathrm\theta)\\=\sin(45+\mathrm\theta)-\cos\lbrack90-(45+\mathrm\theta)\rbrack\\=\sin(45+\mathrm\theta)-\sin(45+\mathrm\theta)\\=0\end{array}{/tex}

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