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given-sin-x-sin-y-2sin-x-y-x-y-0-find-the-value-of-tan-x-2-tan-y-2-




Question Number 86168 by jagoll last updated on 27/Mar/20
given   sin x+sin y = 2sin (x+y)   x+y ≠ 0  find the value of  tan (x/2) tan (y/2) =
$$\mathrm{given}\: \\ $$$$\mathrm{sin}\:\mathrm{x}+\mathrm{sin}\:\mathrm{y}\:=\:\mathrm{2sin}\:\left(\mathrm{x}+\mathrm{y}\right)\: \\ $$$$\mathrm{x}+\mathrm{y}\:\neq\:\mathrm{0} \\ $$$$\mathrm{find}\:\mathrm{the}\:\mathrm{value}\:\mathrm{of} \\ $$$$\mathrm{tan}\:\frac{\mathrm{x}}{\mathrm{2}}\:\mathrm{tan}\:\frac{\mathrm{y}}{\mathrm{2}}\:=\: \\ $$
Answered by john santu last updated on 27/Mar/20
Commented by jagoll last updated on 27/Mar/20
waw...great sir
$$\mathrm{waw}…\mathrm{great}\:\mathrm{sir} \\ $$

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