Question

The value of sin2 20° + cos2 20° is :
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Answer 1

Answer:

Heya buddy your answer is....

The Value of

sin^2 20° + cos^2 20° = 1

SHORT EXPLANATION...

This is because, we have known

sin^2 A + cos^2 A = 1. which is a identity...

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Answer 2

Answer: The answer to the given problem is 1.

We are given the expression, and we want to find its value.

Using the trigonometric identity

                                sin²θ + cos²θ = 1,

we can simplify this expression as follows:

                              sin²20° + cos²20° = 1

This identity is a fundamental property of the sine and cosine functions, and it holds true for any angle θ.

So, the value of sin²20° + cos²20° is 1.

This means that the sum of the squares of the sine and cosine of 20 degrees is always equal to 1, which is a useful property in many applications of trigonometry.

Therefore, the answer to the given problem is 1.

Learn more about trigonometry here

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