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Trigonometric identity

  • #1
599
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Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
7
tanθ + sec - 1 = tanθ + secθ + tan2θ - sec2θ
Factorise the last two terms and simplify.
Substitute in the given problem and simplify.
 

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