Question

Sec8A-1/Sec4A-1=is how much​

Answer 1

Step-by-step explanation:

1/cos8A-1 / 1/cos4A

1-cos8A/cos8A / 1-cos4A/cos4A

1-cos8A/1-cos4A . cos 4A/cos8A

(2.sin4A.cos4A) . sin 4A / 2sin2 2A . cos 8A

sin8A. 2sin 2A cos 2A /. 2sin2 2A. cos 8A

sin8A/cos8A / sin2A/cos2A

tan8A / tan2A

Answer 2

Answer:

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