Math, asked by rithviknani9221, 9 months ago

Tan2a+cot2a=sec2acosec2a-2

Answers

Answered by llxdevilgirlxll
9

<h1 data-shadow='Answer!'>Answer!</h1>

{ \ LHS \ = \ tan ² A \ + \ cot ² A}

\frac{sin²A}{cos ²A} + \frac{cos² A}{sin²A}

\frac{sin⁴A + cos⁴A}{sin ²A cos²A}

\frac{1-2sin²A cos²A}{sin²A cos²A}

\frac{1-2sin²A cos²A}{sin ²A cos²A}

\frac{1}{cos²A} ×\frac{1}{sin²A} { \ - 2}

{ \sec²A \ × \ cosec²A \ - 2}

{ \ RHS}

{ \ Hence \ proved}

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