Assertion (A): tan 23° tan 45° tan 67° = 1. Reason (R): tan 23° tan 67° = tan 23° cot(90° − 67°) = tan 23° cot 23° = 1 and tan 45° = 1. - Mathematics | Shaalaa.com
Assertion (A): tan 23° tan 45° tan 67° = 1. Reason (R): tan 23° tan 67° = t…
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What is tan 45 degrees?... | Filo
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