Question

2 cos square theta equal to 1 by 2 ​

Answer 1

Answer:

60 is answer

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Answer 2

Concept

Trigonometric ratios such as Sin θ , Cos θ ,Tan θ are relation between sides of a triangle.

Given

The relation 2Cos^2 θ =1/2

Find

To find the value of  θ.

Solution

• Trigonometric ratios such as Sin θ , Cos θ ,Tan θ are relation between sides of a triangle.

• Cosθ is relation between adjacent side and hypotenuse of the right angle triangle.

• 2Cos^2 θ =1/2
• Cos^2 θ = 1/4
• Cosθ = +-1/2
• Cosθ = Cos 60
• θ = 60.

The value of  square theta θ is equal 60 according to the question.​

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