If 2 cosθ = a +1a, prove that 2 cos 2θ = a2 +1a2and2 cos 3θ = a3 +1a3
sabin cristanious , 7 Years ago
Grade 11
Trigonometry> If 2 cosθ = a + 1 a , prove that 2 cos 2θ...
1 Answers
Saurabh Koranglekar
Last Activity: 5 Years ago
Dear student
The question is incomplete or not in standard notation kindly repost with source of question as an image
Regards
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