Answer:
40
Step-by-step explanation:
Answer:
x = ± 2
Step-by-step explanation:
x² + 6 = 10
x² = 4
x = ![\sqrt{4}](https://tex.z-dn.net/?f=%5Csqrt%7B4%7D)
x = ±2
Select all the apply
Thank me when your right
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Solution :
We know, cot 2θ = 1/tan 2θ
Multiplying tan 2θ both side of the given equation.
tan²2θ - 3tan 2θ - 10 = 0
tan²2θ - 5tan 2θ + 2tan 2θ - 10 = 0
tan 2θ ( tan 2θ - 5 ) + 2 ( tan 2θ - 5 ) = 0
tan 2θ = -2 or tan 2θ = 5
Therefore,
or ![\theta = \dfrac{tan^{-1} (5)}{2}](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20%5Cdfrac%7Btan%5E%7B-1%7D%20%20%285%29%7D%7B2%7D)
Hence, this is the required solution.