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kozerog [31]
3 years ago
12

Write the trigonometric expression in terms of sine and cosine, and then simplify.

Mathematics
1 answer:
katrin2010 [14]3 years ago
3 0
Hello,

tan t /(sec t -cos t)= sin t/(cos t *(1/cos t -cos t))
=sin t/(cos t*(1-cos ²t)/cos t))
=sin t/sin² t=1/sin t [or=cosec t.]

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