Math, asked by wagleutshav02, 20 days ago

(3−4sin 2 θ)(sec 2 θ−4tan 2 θ)=(3−tan 2 θ)(1−4sin 2 θ)​

Answers

Answered by sandy1816
1

(3 - 4 { \sin}^{2}  θ)( \sec ^{2} θ -  4{ \tan}^{2} θ) \\  \\  = (3 - 3  { \sin}^{2} θ -  { \sin}^{2} θ)( \frac{1}{ { \cos}^{2} θ}  -  \frac{4 { \sin}^{2}θ }{  {  \cos}^{2}θ } ) \\  \\  = (3 { \cos}^{2} θ -  { \sin}^{2} θ)( \frac{1 - 4 { \sin}^{2} θ}{ { \cos}^{2}θ } ) \\  \\  = ( \frac{3 { \cos}^{2}θ -  { \sin}^{2} θ }{ { \cos}^{2}θ } )(1 - 4 { \sin}^{2} θ) \\  \\  = (3 -  { \tan}^{2} θ)(1 - 4 { \sin}^{2} θ)

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