Question

Sin 45 tg 60-√2соs30​

Answer 1

Пошаговое объяснение:

sin 45° tg 60° - √2 соs 30° = (√2)/2 * √3 - √2 * (√3)/2 =

= (√2*√3)/2 - (√2*√3)/2 = (√6)/2 - (√6)/2 = 0

Answer 2

It looks like you want to calculate the value of the expression involving trigonometric functions. Let's break it down step by step:

1. Sin 45: This represents the sine of 45 degrees. The sine of 45 degrees is equal to √2/2.

2. tg 60: This represents the tangent of 60 degrees. The tangent of 60 degrees is equal to √3.

3. √2cos30: This represents the square root of 2 times the cosine of 30 degrees. The cosine of 30 degrees is equal to √3/2. So, √2cos30 = √2 * (√3/2) = √6/2 = √3.

Now, let's put it all together:

Sin 45 + tg 60 - √2cos30 = (√2/2) + (√3) - (√3) = (√2/2).

So, the value of the expression is (√2/2).