Question 3 :
sin 8A +sin 2A
cos 8 A +cos 2 A
tan5A
cot5A
tan4A
sec10A
Joyet​

Question 3 :
sin 8A +sin 2A
cos 8 A +cos 2 A
tan5A
cot5A
tan4A
sec10A
Joyet​

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