tan o
(12)

tan 0 + sec 0 +1
tan 8 + sec 0 – 1
seco-1​

tan o
(12)

tan 0 + sec 0 +1
tan 8 + sec 0 – 1
seco-1​

1 thought on “tan o<br />(12)<br />–<br />tan 0 + sec 0 +1<br />tan 8 + sec 0 – 1<br />seco-1​”

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