Question

Show working that sin2A÷1+cos2A=Tan A​

Answer 1

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Answer 2

$\frac{ \sin(2a) }{1 + \cos(2a) } =$

$\frac{2 \times \sin(a) \times \cos(a) }{1 \: + \: { \cos}^{2} (a) - { \sin}^{2}(a) } =$

$\frac{2 \sin(a) \cos(a) }{( \: \: 1 - { \sin }^{2}(a) \: \: ) + { \cos}^{2}(a) } =$

$\frac{2 \sin(a) \cos(a) }{ { \cos}^{2}(a) + { \cos }^{2}(a) } =$

$\frac{2 \sin(a) \cos(a) }{2 \cos(a) \cos(a) } =$

$\frac{ \sin(a) }{ \cos(a) } =$

$\tan(a)$