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Express sin 70°+85°in terms of trigonometric …

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Express sin 70°+85°in terms of trigonometric ratios of angles between 0°and 45°

    • Posted by Harsha Theja 6 years, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Ram Kushwah 6 years, 9 months ago

    sin(70+85)

    =sin 155

    =sin(180-25)

    =sin (2x90-25)

    =sin 25

    0Thank You

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