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11TH · MATH

Question 9

menu_bookSolutionmenu_bookTheorymenu_book•(i)sin⁡(α+β)\sin(\alpha + \beta)sin(α+β)menu_book•(ii)cos⁡(α+β)\cos(\alpha + \beta)cos(α+β)menu_book•(iii)tan⁡(α+β)\tan(\alpha + \beta)tan(α+β)menu_book•(iv)sin⁡(α−β)\sin(\alpha - \beta)sin(α−β)menu_book•(v)cos⁡(α−β)\cos(\alpha - \beta)cos(α−β)menu_book•(vi)tan⁡(α−β)\tan(\alpha - \beta)tan(α−β)
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school

11TH · MATH

Question 9

menu_bookSolutionmenu_bookTheorymenu_book•(i)sin⁡(α+β)\sin(\alpha + \beta)sin(α+β)menu_book•(ii)cos⁡(α+β)\cos(\alpha + \beta)cos(α+β)menu_book•(iii)tan⁡(α+β)\tan(\alpha + \beta)tan(α+β)menu_book•(iv)sin⁡(α−β)\sin(\alpha - \beta)sin(α−β)menu_book•(v)cos⁡(α−β)\cos(\alpha - \beta)cos(α−β)menu_book•(vi)tan⁡(α−β)\tan(\alpha - \beta)tan(α−β)
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