Question

tan 67°-tan 22°-tan 67°.tan22°=1​

Answer 1

Answer:

tan 45°=1

Step by Step Explanation:

tan 67°-tan 22°-tan 67°. tan 22°=1

tan 67°-tan 22° = 1 - tan 67°.tan 22°

(tan 67°-tan 22°) / (1 - tan 67°.tan 22°) = 1

By using rhe formula : [ tan (a-b) = (tan a - tan b)/(1 + tan a. tan b) ]

tan (67° - 22°)

tan 45° = 1 Answer....

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