sin 8A +sin 2A
_____________
cos 8A +cos 2A
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Answer:
sin 8A +sin 2A/cos 8A+ cos 2A
Step-by-step explanation:
let's
= 2 sin(8A+2A/2)cos(8A-2A/2)/2cos(8A+2A/2)cos(8A-2A/2)
=2sin 5Acos3A/2cos 5Acos 3A
=tan5A
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