Simplify the variable expression by evaluating its numerical part, and enter
1 answer:
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Answer:
Option 4
Step-by-step explanation:
Given:
Sinθ =
Since, cos2θ = 1 - 2sin²θ
cos2θ =
cos2θ = 1 -
cos2θ =
cos2θ =
Therefore, Option 4 will be the answer.
Step 1: Find the factor of the number which is 64 = 4³
![\sqrt[3]{ 4^{3} }](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B%204%5E%7B3%7D%20%7D%20)
Step 2: Apply Radical Rule: Which is![\sqrt[n]{ a^{n} } =a](https://tex.z-dn.net/?f=%20%5Csqrt%5Bn%5D%7B%20a%5E%7Bn%7D%20%7D%20%3Da)
![\sqrt[3]{ 4^{3} } = 4](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B%204%5E%7B3%7D%20%7D%20%3D%204)
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your answer is 4
Step 2: Apply Radical Rule: Which is
your answer is 4