cot (π/4 - 2 cot^ -1 (3)) = (a) 7 (b) 6 (c) 5 (d) None of these - Sarthaks eConnect | Largest Online Education Community
![Prove that ${{\\cot }^{2}}\\dfrac{\\pi }{6}+\\csc \\dfrac{5\\pi }{6}+3{{\\tan }^{2}}\\dfrac{\\pi }{6}=6$ Prove that ${{\\cot }^{2}}\\dfrac{\\pi }{6}+\\csc \\dfrac{5\\pi }{6}+3{{\\tan }^{2}}\\dfrac{\\pi }{6}=6$](https://www.vedantu.com/question-sets/5dc6d588-f677-4b70-b8c4-8bac9cd8eff25511085624236665987.png)
Prove that ${{\\cot }^{2}}\\dfrac{\\pi }{6}+\\csc \\dfrac{5\\pi }{6}+3{{\\tan }^{2}}\\dfrac{\\pi }{6}=6$
![If tan (picottheta) = cot (pitantheta) , then show that tantheta = 14 [2n + 1±√(4n^2 + 4n - 15) ] , where n>1 or n< - 2 . If tan (picottheta) = cot (pitantheta) , then show that tantheta = 14 [2n + 1±√(4n^2 + 4n - 15) ] , where n>1 or n< - 2 .](https://haygot.s3.amazonaws.com/questions/1593940_1730964_ans_19d044251d674951aa1541164d035616.jpg)
If tan (picottheta) = cot (pitantheta) , then show that tantheta = 14 [2n + 1±√(4n^2 + 4n - 15) ] , where n>1 or n< - 2 .
![Solved] What is the exact value of cotangent of 3 PI over 2 radians? (cot 3 PI over 2 radians) – LUNLUN.COM Solved] What is the exact value of cotangent of 3 PI over 2 radians? (cot 3 PI over 2 radians) – LUNLUN.COM](https://lunlun.com/wp-content/uploads/2020/08/Solved-What-is-the-exact-value-of-cotangent-of-3-PI-over-2-radians-cot-3-PI-over-2-radians.png)