prove that 2 tan inverse 1/5 + cos inverse 63/65 = sin inverse 3/5
Sehaj , 7 Years ago
Grade 12
Trigonometry> prove that 2 tan inverse 1/5 + cos invers...
1 Answers
Amit
Last Activity: 7 Years ago
Hi there . For this convert everything in tan-¹ and apply formula .. for example for cos-¹(63/65) can be written as tan-¹(16/65).
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