Question

Find the value of cosec²67˚- tan²23˚.

Answer 1

Step-by-step explanation:

cosec²67°- tan²23°)/(sin²17° + sin²73°)

=[cosec²(90°-23°) -tan²23°]/[sin²(90°-73°) +sin²73°]

=(sec²23° - tan²23°)/(cos²73° + sin²73°)

=1/1

=1

5.0

Answer 2

Answer: (cosec²67°- tan²23°)/(sin²17 ° + sin²73°). =[cosec²(90°-23°) -tan²23°]/[sin²(90°-73°) +sin²73°]. =(sec²23° - tan²23°)/(cos²73° + .

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