tan72 minus cot19=0
Answers
Answered by
0
Answer:
Step-by-step explanation:
Consider tan 71° - cot 19° = tan 71° - cot (90 - 71)°
= tan 71° - tan 71°
= 0
Hence, proved.
Answered by
0
Answer:
there must be cot18 at the place of cot19
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