Cosec^2 67 - tan ^2 23/ sec^2 20 -cot^2 70
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Cosec²67-tan²23/sec²20-cot²70
= sec2(90-67)-tan²23/cosec²(90-20)-cot²70
=sec²23-tan²23/cosec²70-cot²70
=1/1
=1
plz mark brainliest
Answered by
1
ANSWER:
cosec²67°-tan²23
sec²20°-cot²70°
cosec²(90°-67°)-tan²23°
sec²(90°-20°)-cot²70°
sec²23°-tan²23°
cosec²70°-cot²70°
1
1
1
HOPE THIS HELPS !!!
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