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olga2289 [7]
1 year ago
7

Sinª A cosec² A+ cos4 A sec² A = 1

Mathematics
1 answer:
12345 [234]1 year ago
4 0

Step-by-step explanation:

sin4Acosec2A+cos4Asec2A=sin2Asin4A+cos2Acos4A=sin2A+cos2A=1

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