3 cos55°/7 sin35° - 4cos70°cosec20°/7 tan5°tan25°tan45°tan65°tan85° + sec sqaureA - cot square(90°-A)/cosec square67°-tan sqaure23°
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Answer:
Step-by-step explanation:
3/7-4/7-1
3/7-11/7
-8/7
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no answer soory...plz.
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