The value of tan1°.tan2°.tan3°.......tan89° is
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Answered by
17
Step-by-step explanation:
tan1°tan2°tan3°.........tan89°=tan(90°-89°)tan(90°-88°)tan(90°-87°)...............tan(90°-46°)tan45°tan46°.....tan89°
= cot89°cot88°cot87°..........cot46°tan45°tan46°......tan89° [by using identity tan(90°-A)= cotA]
=1tan89°×1tan88°×.........1tan46°×tan45°×tan46°×......tan88°×tan89°
= tan45° =1
Answered by
14
Answer:
tan45°=1
Step-by-step explanation:
hope it's helpful
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