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Trig Identity Simplification

  • Thread starter Burjam
  • Start date
  • #1
52
1

Homework Statement



Simplify the following:

(1/cos2θ) - (1/cot2θ)


Homework Equations



Various trig identities

The Attempt at a Solution



I tried to make cos2θ into 1-sin2θ and cot2θ into csc2θ-1 but still couldn't find any obvious solution. Help?
 

Answers and Replies

  • #2
22,097
3,277
What do you get if you express cot as something using sines and cosines?? What if you then add up the fractions?
 
  • #3
296
0
Did you try simply inverting both fractions? Does that show similarity to a trigonometric identity that you know?
 

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