Question

2sin30°- cos60×tg45​

Answer 1

Ответ:

Объяснение:

2sin30°- cos60°×tg45°​=     2*1/2 - √3  / 2 *1=1 - √3 / 2=   (2-√3)/2

Answer 2

Let's break down each term and simplify them step by step:

1. 2sin30°

We can use the value of sine function for 30 degrees, which is 1/2:

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2sin30° = 2(1/2) = 1

2. cos60

We can use the value of cosine function for 60 degrees, which is 1/2:

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cos60 = 1/2

3. tg45

We can use the value of tangent function for 45 degrees, which is 1:

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tg45 = 1

Putting it all together:

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2sin30° - cos60×tg45
= 1 - (1/2) × 1    # substitute values
= 1 - 1/2
= 1/2

Therefore, 2sin30° - cos60×tg45 = 1/2.